A synthesis reaction is a reaction in which two compounds come together to form one. In this case, if the product is lithium sulfide, the reactants will be lithium and sulfur. Lithium in its natural form is solid, and sulfur also has a solid-state. Lithium sulfide is also a solid compound. The synthesis reaction will be:
[tex]Li_{(s)}+S_{(s)}\rightarrow Li_2S_{(s)}[/tex]Now, we have to balance the equation. We have two atoms of Li on the products side and 1 atom of Li on the reactants side. So, we put the coefficient 2 in Li molecules.
[tex]2Li_{(s)}+S_{(s)}\rightarrow Li_2S_{(s)}[/tex]Now, we have the balanced equation of the synthesis reaction of Lithium Sulfide
the average distance from Earth to thr moon is 384,000 kilometers. How long does it take for light to the go from Earth to the moon?
for one second you travel 300,000 kilometers.
Answer:
Explanation:
About 1.3 seconds
It takes light about 1.3 seconds to travel from the moon to the Earth at a distance of 384000 km. This is because the speed of light is about 300000 km/s. So, it takes light about 1.3 seconds to travel from the moon to the Earth.
atmospheric pressure at the summit of mount everest is about one third the pressure at sea level, which is 760 mm hg. what is the partial pressure of oxygen (po2) at the summit of mount everest if oxygen makes up 21% of the atmosphere by volume at both locations?
The total pressure on Everest would be 34 kPa (or one-third of 102 kPa), and the partial pressure of oxygen would be 34 0.208 = 7.07 kPa.
Atmospheric pressure is the amount of force a given atmospheric column exerts relative to its size. At Mount Everest's summit (8848 m above sea level), the atmospheric pressure is 253 mmHg. The risk to a climber's life at high altitudes may come from the altitude itself. Since atmospheric pressure decreases with altitude, it is 33% lower at the summit of Everest than it is at sea level. Air pressure increases as air density decreases and air thickness increases. The density of air is influenced by a variety of factors. Most significantly, air becomes less dense as altitude rises, lowering atmospheric pressure.
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WHAT IS A HYDRATE? please provide a detailed scientific answer
A Hydrate is a compound containing H2O molecules. The best-known hydrates are crystalline solids that lose their fundamental structure from the removal of bound water. Some examples of hydrate are Glauber's Salt ( sodium sulfate decahydrate, Na2.SO4.10H2O), Washing soda ( sodium carbonate decahydrate, Na2CO3∙10H2O), and the double salts known as alums.
In many cases, hydrates are coordination compounds CuSO4∙5H2O is actually [Cu(H2O)4]SO4∙4H2O where four molecules of water of hydration are coordinated to copper ion. Similarly, MgSO4.7H2O is actually [Mg(H2O)6]SO4∙4H2O.
Noble gases and hydrocarbon gases form crystalline hydrates called clathrate compounds which are relatively at low temperatures and pressure.
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Using the periodic table, predict whether the following chlorides are ionic or covalent: SiCl4, PCl3, CaCl2, CsCl, CuCl2, and CrCl3.
The following chlorides are ionic or covalent:
SiCl₄ = covalent
PCl₃ = covalent
CaCl₂ = ionic
CsCl = ionic
CuCl₂ = ionic
CrCl₃ = ionic
SiCl₄ is silicon tetrachloride. SiCl₄ is a covalent. The bond between silicon and chlorine is formed by the sharing of electrons.
PCl₃ is Phosphorous trichloride . PCl₃ is covalent. Phosphorus contain 5 electrons in valence shell and requires 3 more to complete octet and chlorine require one electron to complete octet so, the bond formed is by sharing of electron.
CaCl₂ is calcium chloride. CaCl₂ is an ionic. calcium is metal and metal donates electron to chlorine is non metal and non metal accept electrons and become Ca²⁺ and Cl⁻. The bond formed by the transfer of electrons.
CsCl is cesium chloride. CsCl is an ionic. symbol of ions : Cs⁺ and Cl⁻
CuCl₂ is copper(II) chloride. CuCl₂ is ionic formed by the transfer of electrons. symbol of ions : Cu²⁺ and Cl⁻
CrCl₃ is chromium(III) chloride. CrCl₃ is an ionic. symbol of ions : Cr³⁺ and Cl⁻.
Thus, The following chlorides are ionic or covalent:
SiCl₄ = covalent
PCl₃ = covalent
CaCl₂ = ionic
CsCl = ionic
CuCl₂ = ionic
CrCl₃ = ionic
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What are water turbines used for?
Answer:
A water turbine is used to convert the energy contained in water, potential energy or kinetic energy, into mechanical or electrical energy. There are two types of water turbines, the reaction water turbine, and the impulse water turbine.
Explanation:
Answer:
Water turbines are used to take energy whether it may be kinetic or potential from the water and convert that energy into mechanical, or electrical energy.
Explanation:
which statements correctly describe a polar covalent bond? i. electrons are shared but not equally by the two atoms. ii. one atom has a small negative charge, and the other atom has a small positive charge. iii. the bond dipole is zero. iv. one or more electrons are transferred from one atom to a second atom.
A covalent bond bond is appropriately described as occurring when one or even more electrons move of one atom to another.
what is covalent polar bond?a bond in which the two bound atoms' electron densities are unequally distributed as a result of either a difference in the electronegativity or the effects of induction.
A covalently bonded bond is represented by the water molecule, written as H2O. The oxygen atom is given more time with the electrons than for hydrogen atoms due to the unequal distribution of the electrons.
what is electron?The electron is an unit of matter with a negative zero elementary charge electric charge. Due to their lack of known components, electrons, which are part of the first generation of lepton particles family, are typically regarded to be elementary particles or substructure
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suppose you perform a titration of a monoprotic weak acid and you determine the ph at the equivalence point is 9.21 and the ph at the half-equivalence point is 4.24. what is the pka of the acid? enter your answer numerically.
The pKa of the weak acid, based on the titration results, is 4.24.
Only the half-equivalence pH is needed to answer this.
At the half-equivalence point of the titration, half of the monoprotic acid HA has been neutralized and converted to the appropriate salt. That means that the concentration of the acid [HA] is equal to the concentration of its anion [A⁻]. Now, we can consult the Henderson-Hasselbalch equation:
[tex]pH = pKa + log\frac{[A^{-} ]}{[HA]}[/tex]
Because [A⁻] = [HA], that means that:
[A⁻]/[HA] = 1
log(1) = 0
pH = pKa
So, at the half-equivalence point in the titration of the weak acid the pH value of the solution is equal to the pKa value of the weak acid, so pKa = 4.24
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What number helps us identify the element?
Answer:
The Atomic Number
Explanation:
The atomic number is the number of protons of an atom in its nucleus.
Each element has a unique atomic number.
(view screenshot too, to find where it is in element table)
the amount of iron in an iron ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate. the net ionic equation is: redox titration.gif the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.150 m solution of dichromate (cr2o72-) to reach the equivalence point. what is the molarity of the iron(ii) solution?
According to the given statement The molarity of the iron(II) solution is 0.648 M.
What is molarity?The amount of the sample in a specific solution volume is defined as its molarity (M). The molarity of a solute per litre of a solution is known as molarity. The molar concentration is yet another name for molarity.
Briefing:Iron(II) solution volume (V₁) = 25.0 mL/0.025 L
Dichromate solution (V₂) has a volume of 18.0 mL, or 0.018 L.
Dichromate solution molarity (M₂) = 0.150 M
Molarity of dichromate solution is :
M₂ = n₂/V₂
(n₂ = M₂* V₂ = 0.150 * 0.018 = 2.7 * 10⁻³ mol
Complete balanced equation is given below.
[tex]6 \mathrm{Fe}^{2+}(a q)+\mathrm{Cr}_2 \mathrm{O}_7^{2-}(a q)+14 \mathrm{H}^{+}(a q) \rightarrow 6 \mathrm{Fe}^{3+}(a q)+2 \mathrm{Cr}^{3+}(a q)+7 \mathrm{H}_2 \mathrm{O}[/tex]
It is obvious from the equation that 1 mole of dichromate is needed to make 6 moles of iron(II) solution.
Therefore, we calculate the number of moles of iron(II) solution using the unitary technique.
1 mole of dichromate is equal to 6 moles of iron (II)
6n₂ moles of iron are equal to n₂ moles of dichromate (II)
=6 * 2.7 * 10⁻³ = 0.0162 mol Fe²⁺
So, 0.0162 moles of iron(II) is needed. Therefore,
Now, molarity of iron(II) solution is given as: n[tex]_1[/tex] = 0.0162
Molarity = Moles ÷ Volume
M₁ = n[tex]_1[/tex]/V₁
M₁ = 0.0162mol/0.025 L = 0.648 M
The molarity of the iron(II) solution is 0.648 M.
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The complete question is -
The titration of 25.0 mL of an iron(II) solution required 18.0 mL of a 0.150M solution of dichromate to reach the equivalence point. What is the molarity of the iron(II) solution?
If mercury (ii) oxide is heated and decomposes, what would the product of the reaction be? 4hgo → 4 2o2
If mercury (ii) oxide is heated and decomposes, the product of the reaction be 4 Hg.
Mercury is a chemical element with the atomic number 80 and the symbol Hg. Formerly known as hydrargyrum and also known as quicksilver, In order to fragment anything into smaller pieces or to break it into smaller pieces, mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lights, and other devices: Methane and carbon dioxide are produced when microbes break down organic waste. staying fresh while decomposes The process of recycling nutrients that an organism (plant or animal) has utilized to develop its body begins with decomposes. It is the process by which the decomposing dead tissues transform into more basic organic forms. For a large number of the species at the base of ecosystems, these serve as a food supply.
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the volume of a balloon filled with he at 755 mmhg is expanded from 2.20 l to 3.86 l at a constant temperature. what is the final pressure (in atm) of the the balloon?
The final pressure of the balloon that was initially filled with a volume of 2.20L to 3.86L is 430.3mmHg.
How to calculate pressure?The pressure of a gas can be calculated using the Boyle's law equation as follows:
P₁V₁ = P₂V₂
Where;
P₁ = initial pressureV₁ = initial volumeP₂ = final pressureV₂ = final volumeAccording to this question, the volume of a balloon filled with He at 755 mmHg is expanded from 2.20L to 3.86L at a constant temperature. The final pressure can be calculated as follows:
755 × 2.2 = P₂ × 3.86
1661 = 3.86P₂
P₂ = 430.3mmHg
Therefore, the final pressure of the balloon that was initially filled with a volume of 2.20L to 3.86L is 430.3mmHg.
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Is the exoplanet like earth in terms of its distance from its star? Explain your answer
The distance between the earth and star = 8 ✕ (9.46 ✕ 1012) = 7.6 ✕ 1013 km.
What is exoplanet?
Every planet in our solar system orbits the Sun. Planets known as exoplanets orbit other stars. It is quite challenging to directly observe exoplanets with telescopes. They are hidden by the bright light from the stars they orbit.
It is challenging to give distances in kilometers for many celestial objects since they are so far away from the earth, such as galaxies or stars.
How far light may travel in a year is measured in large units called light-years. The vast distances are therefore expressed in terms of light-years.
9.46 x 1012 kilometres make up a light year.
In other words, if a star is eight light-years away, light would travel that distance in eight years. This is how the distance between a star and the earth is calculated.
Therefore, the distance between the earth and the star is 8 (9.46 1012) = 7.6 1013 kilometers.
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Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients.
The balanced chemical reaction equation is obtained as [tex]Fe(s) + 2O_{2} (g) + H_{2} O ---- > 2Fe(OH)_{2} (aq)[/tex]
What is a chemical reaction equation?The term chemical reaction equation refers to the way that we represent the combination of the reactants that leads to the formation of the products ins given chemicals reaction process. We know that the stoichiometry of the reaction is very important as it does show us how the reactants and the products can be combined for the particular reaction that we are considering.
We now have the reaction that is occurring between the metallic iron and oxygen and water. This is the reaction that occurs when there is rusting that is occurring on a given or particular piece of iron as we have it here.
We shall now attempt to look at the equation so that the equation that has been shown in the question can be appropriately balanced according to the rules.
Thus, we could write the balanced chemical reaction equation as; [tex]Fe(s) + 2O_{2} (g) + H_{2} O ---- > 2Fe(OH)_{2} (aq)[/tex]
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i really need the ansewer so whats the answer?
Energy was lost by substance A to the environment is the statement which best supports the data in the table and is denoted as option D.
What is Energy transfer?This is referred to as the processes which is characterized by the movement of energy from one system to another an an example is heat energy transfer which have different techniques such as conduction, convection etc.
Temperature on the other hand is the measure of the degree of hotness or coldness of a substance and is influenced by heat energy.
From the graph, we can deduce that substance has a temperature which was decreasing with time while substance B has a temperature which was constant throughout.
This therefore means that Energy was lost by substance A to the environment hence ,the reason why option D was chosen as the correct choice.
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what type of hydrogen atoms (primary, secondary, tertiary aliphatic. primary, secondary, tertiary benzylic. aromatic) are found in the following compounds: a) tert-butyl benzene b) cyclohexane c) ethylbenzene d) toluene e) isopropyl benzene
Answer: Benzylic hydrogen refer to the hydrogen atoms attached to the carbon atom just next to the benzene group. In ethyl benzene carbon next to benzene has two hydrogen atoms only.
Explanation: For example, among the inorganic compounds, oxides contain O 2− ions or oxygen atoms, hydrides contain H − ions or hydrogen atoms, sulfides contain S 2− ions, and so forth.
a student conducts an experiment and finds that a sample of the solid substance he is testing conducts electricity. the student concludes that the material must be an covalent compound. what is wrong with this conclusion?
This conclusion is wrong; because the covalent molecules do not conduct electricity.
Which are covalent molecules?A covalent bond is created when one or more pairs of electrons are exchanged between two atoms. The two atomic nuclei are drawing these electrons in unison. A covalent bond is created when there is not enough room between the electronegativities of two atoms for an electron transfer to occur and produce ions.
The atoms associate in a covalent bond by exchanging electrons. Typically, nonmetals form covalent connections with one another. For instance, each hydrogen (H) and oxygen (O) share two electrons to form the molecule of two hydrogen atoms singly linked to one oxygen atom that is known as water (H₂O).
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as a result of the sigmoidal shape of the o2-hb dissociation curve, there is very little change in hb saturation across a range of po2 values when po2 is high (e.g. between 80 and 100 mm hg in the text book figures). according to the reading, what is an advantage of the relatively flat shape of the curve here?
Red blood cells contain hemoglobin. When carbonic acid, which is found in tissues, is present, hemoglobin releases the bound oxygen. The oxygen that is attached to hemoglobin is released into the blood's plasma and taken up by the tissues in the capillaries, which are also where carbon dioxide is created.
Throughout each of these deep breathing cycles, how do the partial pressures change?If more air is exchanged, the partial pressures of the outside atmosphere will approach but never reach them due to the remaining volume.
Combustible Oxide : The dissociation curve shifts to the left as a result of one CO molecule binding to hemoglobin increasing the affinity of the other binding locations for oxygen.
Lower CO2, greater pH, and lower temperature all move oxygen dissociation to the left.
The pCO2 is significantly influenced by two variables. The person's breathing rate and depth are the first thing to consider. Someone who is hyperventilating will "blow out" more CO2, which will lower pCO2 levels. Holding one's breath causes CO2 to be retained, which raises pCO2 levels.
Limited pressures : There are two reasons why the alveolar oxygen partial pressure is lower than the ambient O2 partial pressure. First, the upper airway humidifies the air as it reaches the lungs, lowering the partial pressure of oxygen to around 150 mmHg while increasing the partial pressure of water vapour (47 mmHg).
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An important formula from chemistry is PV = nRT. Solve the formula for R.
The value of R from the ideal gas equation is 0.082 atm.L/K/mol.
What is the ideal gas equation?The ideal gas equation is the equation that shows the relationship between pressure, and volume. moles of a gas and the temperature of a gas under ideal conditions.
The ideal gas equation is given below as follows:
PV = nRT
At standard temperature and pressure, the values of the variables are given below;
Pressure, P = 1 atm
Volume, V = 22.4 Liters
Number of moles, n = 1 mole
Temperature, T = 273.15 K
R = PV/nT
R = 1 * 22.4 / (273.15 * 1)
R = 0.082 atm.L/K/mol
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The mass of an atom of chlorine-37 is _______ than the mass of an atom of chlorine-35
The mass of an atom of chlorine 37 is heavier than the mass of an atom of chlorine 35.
Mass number of atomsThe mass number of atoms is the sum of the protons and neutrons in the nuclei of atoms.
Mathematically:
Mass number = number of protons + number of neutrons
The protons are the positively charged particles located in the nuclei of atoms while the neutrons are neutrally charged particles found in the nuclei of atoms as well.
Both proton and neutron numbers determine how heavy an atom would be. Electrons of atoms are usually located outside the nuclei and contribute a negligible amount to the weight of atoms.
Thus, a chlorine atom with an atomic mass of 37 is heavier than a chlorine atom with a mass of 35.
Although both atoms are from the same elements, they are called isotopes. Isotopes of the same element have the same proton number but different mass numbers.
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The patient has a bone density of 1200mg/cm^3 what is the mass of 39.5cm^3 sample
Answer:
47,400 mgExplanation:
The mass of the bone sample can be found by using the formula
mass = density × volume
From the question
density = 1200mg/cm^3
volume = 39.5cm^3
We have....
mass = 1200 × 39.5 = 47400
We have the final answer as
47,400 mgHope this helps you
a student was given a dye sample believed to contain several components. in an attempt to determine the identity of those components, she decided to analyze the mixture using tlc. the student used both 100% hexanes and 50% hexanes in ethyl acetate as eluting solvents and spotted known dyes for comparison. the following tlc chromatographs were obtained. which is the best solvent choice for this analysis?
The best solvent choice for this analysis will be 50% hexanes in ethyl acetate.
Ethyl acetate having a molecular weight of 174.28, is observable in chromatography paper.
In the chemical examination, chromatography could be a research facility strategy for the partition of a blend into its components.
The blend is broken down into a liquid dissolvable (gas or fluid) called the versatile stage, which carries it through a framework (a column, a capillary tube, a plate, or a sheet) on which a fabric called the stationary stage is settled.
Since the distinctive constituents of the blend tend to have diverse affinities for the stationary stage and are held for distinctive lengths of time depending on their intuition with their surface destinations causing them to partition.
The partition is based on the differential dividing between the portable and the stationary stages. Unpretentious contrasts in a compound's parcel coefficient result in differential maintenance on the stationary stage and hence influence the division.
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help me out please and thank you
What occurs when copper sulfate solution is combined with a piece of silver metal?
If the reaction happens, you should also write the chemical equation in balance.
Reactions to displacement as a first option
A more reactive metal can displace a less reactive metal from a solution in a displacement reaction. The reactivity series of metals can be used to forecast the end products of a displacement process. The metals are arranged according to their reactivity with diluted acids in the reactivity series. A specific metal in the reactivity series may be displaced by metals positioned above it.
In the reactivity series, some of the elements above hydrogen (H) are potassium (K), sodium (Na), magnesium (Mg), zinc (Zn), and others. Several of the metals in the reactivity sequence below hydrogen
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8) There is only one naturally occurring isotope of beryllium, Be-9. Explain why the atomic
mass of this isotope is the same value as the "average atomic mass" for beryllium found
on the periodic table.
Answer:
The average atomic mass for an element is calculated by summing the masses of the element's isotopes, each multiplied by its natural abundance on Earth. Since beryllium has only one naturally occurring isotope. The average atomic mass of beryllium is the mass of Be-9 isotope multiplied by 100%.
Explanation:
Diagram of Down's cell
the diagram of downs cell
52.31g of Cu(NO3) is dissolved in enough water to make 1.400 mL of total solution. what is the molarity of solute in the resulting soultion?
Molarity :
The number of moles of solute per liter of solution is known as molarity or molar concentration. It is used to express the concentration of a given solute in a solution.
It can be calculated using the formula, Molarity = [tex]\frac{number-of- moles-of-solute}{Volume-of-the-solution-in-liters}[/tex]
Given data:
Mass of the solute ( Cu(NO3) ) = 52.31 g
Volume of the solution = 1400 mL = 1.4 Liters,
Then, Molar mass of the solute = 125.55 g/mol
Then, number of moles of solute = [tex]\frac{mass of solute}{molar mass of solute}[/tex]
= [tex]\frac{52.31}{125.55}[/tex] = 0.417 mole
Then, Molarity = [tex]\frac{0.417}{1.4}[/tex] = 0.298 M
Therefore, the molarity of solute in the resulting solution is = 0.298 M
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Figure 2 represents part of the structure of graphite.
Graphite is used as a contact in electric motors because graphite:
conducts electricity
is slippery
Explain why graphite has these properties.
Answer: Graphite is a soft lubricant and good conductor of electricity as it pi bonds.
Explanation: Brushes collect the current due to the induced emf from the armature coils. When a brush is at any particular commutator segment, it shorts out that particular coil and draws current from the rest of the coils.
If the brush is not exactly at the particular segment, say one half is in one segment and other half is in a different one, then it draws current in that proportion.
But the thing remains that, at any particular moment of time, the brushes are always shorting one coil. Now as it is a short circuit, if emf is induced in that coil, huge current will flow. To prevent this, brushes are positioned in such a way that the coil being short circuited has no induced emf in it.
Answer:
hahah
a.haahahkdog
Explanation:
the sentence is
Pretest: Unit 1
Question 3 of 42
Which of the following is an example of engineering, not science?
Which of the following is an example of engineering, not science?
OA. Predicting the precipitate formed during a chemical reaction
OB. Adding lime to adjust the acidity of a lake
OC. Developing a machine to control the rate of a reaction
OD. Determining the relative reactivity of two metals
SUBMIT OA. Predicting the precipitate formed during a chemical reaction
OB. Adding lime to adjust the acidity of a lake
OC. Developing a machine to control the rate of a reaction
OD. Determining the relative reactivity of two metals
SUBMIT
Correct option is OC- Developing a machine to control the rate of a reaction according to engineering
What is engineering?
Engineering is a field that has been performed for thousands of years, but STEM education, which attempts to engage students with science, technology, engineering, and mathematics, includes it as a component.
The Parthenon, Stonehenge, and the Pyramids of Giza, among other places, are instances of engineering. However, modern engineers work in a variety of fields in addition to erecting structures.
Engineers work on a variety of things, including as cell membranes, building materials, prosthetics, increasing the efficiency of engines and vehicles, and creating renewable energy sources.
Correct option is OC- Developing a machine to control the rate of a reaction according to engineering
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6. How can you use different properties and changes to identify a chemical substance? Choose all that apply.
Specific pure substances have their own unique properties.
When separating mixtures, you can use their properties to determine what separation technique is needed.
You can compare properties and changes of an unknown substance to a known one to see if they are the same or different
Different substances will have different properties and will change in different ways.
You can create classifications of substances based on their properties and/or changes.
Both physical and chemical properties can be used for identification of chemical substance and hence all the given statements are correct.
What are chemical properties?These properties are defined as those properties which become evident during or after a chemical reaction after the identity of the substance is changed during chemical reaction.
These properties cannot be determined externally just by viewing the substance ,these change immensely after a substance undergoes a chemical change.These are used for identification of unknown substances and for building up chemical classifications.
The major chemical properties are flammability,toxicity,reactivity,acidity and heat of combustion.For a chemical property to be apparent , it is necessary that the structure of the substance is altered.
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What is the boiling point of a solution of 0.250g of glycerol, C3H8O3, in 40g of H2O? Glycerol is a molecular compound, i = 1
Explanation
Given:
mass of glycol = 0.250g
mass of solvent (water) = 40g = 0.04 Kg
i = 1
Required: The boiling point of the solution
Solution
[tex]\Delta T\text{ = Kbm}[/tex]where Kb is the boiling point elevation constant
m is the molal concentration (molality) of all species
Step 1: Find the moles of glycerol
n = m/M
n = 0.250g/92,09382 g/mol
n = 2.71x10^-3 mol
Step 2: Find the molality
molality (m) = moles of solute/Kg of solvent
molality = 2.71x10^-3/0.04Kg
molality = 0.068 m
Step 3: Find the change in temperature
[tex]\Delta T\text{ = Kbm}[/tex]Kb of water = 0.512 cm^-1
DT = 0.512 x 0.068
DT = 0.035 'C
Step 4: Find the boiling point
Boiling point of water = 100 'C
DT = 0.035 'C
New boiling point =100 + 0.035 = 100.035 'C
Answer
100.035 'C
10. Electrical energy is caused by ______
electric ions.
Answer:
Electrical energy is caused by moving
electric ions.
Explanation:
The faster the charges move, the more electrical energy they carry. As the charges that cause the energy are moving, electrical energy is a form of kinetic energy.