Draw the structure of the major organic product(s) of the reaction. Grinard's

The temperature change that indicates an increase in the average kinetic energy of the molecules in a sample is 255 K to 0°C.

Chemical reactions occur when particles of reactants react or collide with one another, hence, when particles collide faster, reaction also occurs faster.

One of the ways to make reactions occur faster i.e. increasing the average kinetic energy is by increasing the temperature.

The example that depicts an increase in temperature is 255K to 0°C, which is equivalent to 255K to 273K.

Therefore, the temperature change that indicates an increase in the average kinetic energy of the molecules in a sample is 255 K to 0°C.

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Answer:

A. acidic

Explanation:

Answer:

The Lewis structure indicates that each Cl atom has three pairs of electrons that are not used in bonding (called lone pairs) and one shared pair of electrons (written between the atoms). A dash (or line) is sometimes used to indicate a shared pair of electrons: A single shared pair of electrons is called a single bond.

Explanation:

Answer:

Chemical reaction occurs when chemical bonds between atoms are formed or broken . The substance that go into a chemical reactions are called reactants, and the substance produced at the end of the reaction are known as the product .

Answer:

Explanation:

Image result for Summarize: What do you think would happen to the convection currents in the atmospheres and along the coastlines of the surface of the Earth warmed up? Do you think this could have any affect on the convection in the mantle? Why or why not? Your answer should be at least 3 sentences in length,

As the magma cools and solidifies, the convection currents will stop and the Earth will become geologically dead.

The kinetic molecular theory of matter states that:

1. Matter is made up of particles that are constantly moving.

2. A change in phase may occur when the energy of the particles is changed.

3. All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state.

Answer:

Reflection

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The world is divided into large areas based on their average temperatures and precipitation is called climate zones.

The principal zones that are demarcated by lines of latitude due to which the earth can be divided on the basis of climate. Tropical zone, Subtropics zone, Temperate zone and Cold zone are the four types of climatic zones.

So we can conclude that large areas based on their average temperatures and precipitation is called climate zones.

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The world is divided into large areas called climate zones based on their average temperatures and precipitation.

Climate zones are areas of the Earth that results from differences in climate such as temperature, humidity, amount of precipitation etc.

Climate zones of the globe are as follows:

Therefore, it can be said that the world is divided into large areas called climate zones based on their average temperatures and precipitation.

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Answer:

carbon = 3

hydrogen=5

nitrogen=3

Oxygen=9

A gas has a pressure P at 27 °C. To calculate its pressure at 57°C we use an expression derived from Gay-Lussac's law:

C) P2 = (300/330) P

Gay-Lussac's law states that the pressure of a given mass of gas varies directly with the absolute temperature of the gas when the volume is kept constant.

Mathematically, it can be written as:

P/T = k

A gas has a pressure P at 27 °C and we want to find the expression to calculate its pressure at 57°C.

We do so by summing 273.15.

K = 27 + 273.15 = 300 K

K = 57 + 273.15 = 330 K

P2/330 = P/300

P2 = (300/330) P

A gas has a pressure P at 27 °C. To calculate its pressure at 57°C we use an expression derived from Gay-Lussac's law:

C) P2 = (300/330) P

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Answer:

The loss of crystalline structure of sucrose was reported at various temperatures, but decomposition, after >50 h of holding at 120 °C in a sealed pan.

Explanation:

As this condition is above the melting temperature of fructose (a possible first decomposition product), and there were water and impurities.

Another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.

Microspectrophotometry is a biological technique used to measure the absorption or transmission spectrum of a solid or liquid material in either transmitted or reflected light.

Microspectrophotometry can also measure the emission of light by a sample, which is usually small as the micro implies.

One advantage of microspectrophotometry is that the sample does not get damaged. However,

However, another advantage of advantage of using a microspectrophotometer to analyze fibers asides not causing damage to the sample is that the sample can be quite small.

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Based on the standard heat of formation of aluminium oxide, the heat of the reaction of the decomposition of aluminium oxide is +3339.6 kJ

The heat or enthalpy of a reaction is the amount of heat evolved or absorbed when reactant molecules when reactants form products.

Considering the given reaction:

The heat of formation of aluminum oxide is -1669.8 kJ/mol.

The heat of the reaction of the decomposition of aluminium oxide is calculated as follows:

Heat of reaction = Heat of formation of products - Heat of formation of reactants

Heat of reaction = {3 × ΔHf°O2 (g) + 2 × ΔHf° Al(s)} - 2 × ΔHf° Al2O3 (s)

Since the standard enthalpy of formation,ΔHf°, of an element in its most stable form is equal to zero.

ΔH°rxn = (3 × 0 + 2 × 0) - 2 × -1669.8 kJ/

ΔH°rxn = +3339.6 kJ

Therefore, the heat of the reaction of the decomposition of aluminium oxide is +3339.6 kJ

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Answer:

Given the balanced reaction, note that there are two molecules of water produced for every two molecules of H2

Explanation:

There are two molecules of water is produced from 2 molecules of hydrogen.

It is the lightest element which is colorless, tasteless, and non-toxic.

Water is made up of hydrogen and oxygen, with a good amount of heat to carry out the reaction.

The equation is

[tex]\rm 2H_2O + O_2 = 2H_2O[/tex]

It is clear that two molecules of hydrogen produce two molecules of water.

Thus, there are two molecules of water is produced from 2 molecules of hydrogen.

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Explanation:

which one of the following a correct way of finding current?

Answer:

They are food for some animals. Some animals use them for nesting material. Humans can dry and burn some types of nonvascular plants as a fuel.

Explanation:

Some nonvascular plants produce various nutrients that are passed to the soil and can be used by other plants. Also, nonvascular plants that cover a large surface area help maintain the cohesion of the land by reducing the risk of erosion. Nonvascular plants are also very important to animals.

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Triangles may be regarded as similar or congruent on the following basis;

1) Side angle side (SAS)

2) Side side side (SSS)

3) Angle Angle side (AAS)

A triangle is a three sided figure. The figures are not shown here. However, two triangle may be regarded as similar or congruent by the following conditions;

1) Side angle side (SAS)

2) Side side side (SSS)

3) Angle Angle side (AAS)

Since the triagles are not shown here, the similarity of the triangles can not be established.

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Answer:

Opposes the motion

Explanation:

Let's take an example

option A is correct

The matter is conserved on a molecular scale when ionic compounds dissociate in solution in the form of solvated ions.

Ionic compounds are those compounds which are formed due to high attractive electrostatic force between the cation (positively charged ion) and anion (negatively charged ion) of any substance.

When a solid ionic compound dissolve in any solution then they will shows dissociation reaction as a result of which we get their ions uniformly distributed in the solution. As water molecule is also polar and ionic compounds are also polar that's why they show complete dissolving in water due to dissociation.

Hence in molecular scale we get it in the form of solvated ions.

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Answer:

15.055 X 1023 atoms

Explanation:

hope clear

Answer:

22.4

Explanation:

Paul J. Chirik developed methods associated with chemistry catalysis and transition metals, which may result useful for the development of manufacturing technologies.

Catalysis refers to the chemical processes that increase the rate of different types of reactions by lowering its activation energy.

Proteins (enzymes) are biological catalysts that increase the rate of chemical reactions in biological systems.

Catalysis may be reached by using transition metals (e.g., actinium and rutherfordium), which result useful in the development of manufacturing technologies.

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Answer:

nitrogen oxides and hydrogen

Answer:

the answer is electrons

Explanation:

electrons are responsible for the chemical bonding.

Answer:

Because X-rays have wavelengths similar to the size of atoms

X rays are used to probe the crystal structure of a material because this have same wavelength as atoms of crystal have.

X rays are the type of electromagnetic radiations and it is produced when the fast moving electron collide with the target anode and sudden deceleration takes place.

X rays have the high energy so that it easily penetrate in any crystal molecule as they also have same wavelength as atoms of the crystals have.

Hence due to high energy and same wavelength was of atoms of crystal it is used to probe the crystal.

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Answer:

%H20=

(14xH)+(7xO)______________________________ X 100(Mg) + (S) + (4 x O) + (14 x H) + (7 x O)Thus,(14 x 1.008) + (7x16.0)______________________________________ X 10024.31 + 32.06 + (4x16.0) + (14 x 1.008) + (7x16.0)=126.122_____________ X 100246.482= 0.512 x 100=51.2%There is 51.2% of water is Magnesium Sulphate-7-water.