Chemistry

Can anyone explain to me how I solve 3x10^8 / 3.82x10^-7 I know the answer due to referring to the key but I'm not sure how they got it. Answer was 7.85x10^14
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Which energy transformations occur when a candle burns?Thermal energy transforms into mechanical energy and radiant energy.Chemical energy transforms into thermal energy and electrical energy.Thermal energy transforms into radiant energy and chemical energyChemical energy transforms into thermal energy and radiant energy.
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will mark brainliest, please hurry! :>When a hydroxyl group is substituted for a hydrogen atom in a hydrocarbon, what type of molecule results?a.an alcoholc.a carboxylic acidb.an amined.a polymer
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InstructionsClick the links to open the resources below. These resources will help you complete the assignment. Once you have created yourfile(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or networkfolder. Upload each file separately.
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can anybody help me? ill mark brainliest!!! please ITS TIMED
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Is crumbling sheet of paper physical or chemical change and why! Pls help fast!!!! :((
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What are some ways your body regulates the increase of body temperature that also occurs when exercising?
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One atom of carbon _____.has four electron shellsis part of all inorganic compoundsforms a special shape called a tetrahedroncan bond with up to four other atoms
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BE FIRST TO ANSWER FOR SUM GOOD!!!!!:D
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What is a diaphragm? What does it do?
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hello~i will really appreciate it if you answer all this1.How many valence electrons do noble gases like Ne,Ar and Kr have?a.1. b.2 c.6 d.72.The following describe ionic bonding,EXCEPT____.a.It involves the transfer of electrons.b.It involves sharing of electrons.c.atoms either gain or lose electrons.d.It is a bond between a metal and a non-metal.3.Which of the following pairs of atoms is most likely to form a covalent compound?a.C,O b.Na,O c.Mg,Br d.Ba,CI4.Which of the following is a metal?a.O b.S c.K d.C5.Which is not a type of a chemical bonding?a. Polar bonding b.Metallic bondingc.ionic bondingd.covalent||. A. Use Lewis structures to show . the transfer of electrons in the given combinations.1.K +Br2.Ba + I3.Be + O4.Na + S5.AI + FB.What ionic charge will the following elements have?PLEASE JUSTIFY YOUR ANSWER.1. Group 2A2. Group 5A3.Group 6AC.Predict whether the bonding in the oxides of the following elements is covalent or ionic.EXPLAIN YOUR ANSWER.1.Aluminum2.Magnesium3.Phosphorus4.silicon5.sodium|||. Write the electron configuration of the following elements.1. Ti2. V3. Se4. Ag5. Zrthank you!to your hardwork
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please help!! my grades dying 15 points
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The strength of an acid is affected by the polarity of the bond connected to the acidic hydrogen. The more highly polarized this bond, the more easily the hydrogen is ionized. Electronegative atoms or groups of atoms present in the structure of an acid can act to withdraw electrons and produce additional polarization. Two common groups of acids to which this principle can be applied are oxyacids and carboxylic acids. Arrange the following oxyacids in order of decreasing acid strength. Rank from strongest to weakest acid. a. HBrOb. HClOc. HClO3d. HClO2
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The relative formula mass (M) of a Group 2 metal carbonate is 197Relative atomic masses (Ar): C = 12O = 16Calculate the relative atomic mass (Ar) of the Group 2 metal in the metal carbonateName the Group 2 metal.
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Add 92.2 km to 9426 m and report the answer in km. 92.2 km + 9426 m = ____ km
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within a balloon there are 3 types of gases. the first gas, A, is 6.0 grams in amount, the second gas, B, is 4.0 grams and the last, C, is 3.5 grams. The molar mass of gas "A" is 13.56 g/mol, "B" is 11.76 g/mol and "C" is 12.07 g/mol. If the total pressure inside the balloon is 15 atm, what is the partial pressure of each gas?
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The reaction below shows how the potential energy changes during achemical reaction. What does the red arrow show?
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At what time was the frog sitting still or at rest
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what is write out the following number as a decimal number [tex]1.2 \times {10}^{5} [/tex]
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I NEED AN ANSWER PLEASE!A element is having atomic number 82. find the number of its protons and electrons
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what's the difference between series and parallel circuit in table form?
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as a change of state takes place, heat and temperature a. increase stays the sameb. stays the same, stays the samec.stays the same, changes.d.increases,increases
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WILL MARK BRAINLIEST (if correct)
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what are Atoms?what do they do?
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