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mixas84 [53]
3 years ago
7

What energy is used when you ring a church bell?

Chemistry
1 answer:
nadezda [96]3 years ago
3 0
Kinetic energy :) :)
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What is the empirical formula of a compound that contains 25.92 percent nitrogen and 74.07 percent oxygen?
pychu [463]

<span><span>N2</span><span>O5</span></span>

Explanation! 

When given %, assume you have 100 g of the substance. Find moles, divide by lowest count. In this case you'll end up with

<span><span>25.92 g N<span>14.01 g N/mol N</span></span>=1.850 mol N</span>

<span><span>74.07 g O<span>16.00 g O/mol O</span></span>=4.629 mol O</span>

The ratio between these is <span>2.502 mol O/mol N</span>, which corresponds closely with <span><span>N2</span><span>O5</span></span>.

4 0
3 years ago
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What is the formula for an alkene containing six carbon atoms?
Charra [1.4K]

Answer:

C

Explanation:

Cyclohexane is a cycloalkane with the molecular formula C₆H₁₂. Cyclohexane is non-polar.

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please mark brainlest if right

Explanation:

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Question 15 Measurements show that the energy of a mixture of gaseous reactants decreases by during a certain chemical reaction,
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20+56+760383848483838393949494994

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Any solid that forms in a liquid during a chemical reaction is called a
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<span>it is called precipitant</span>
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