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Harrizon [31]
3 years ago
13

What is chemistry the study of?

Chemistry
2 answers:
IRINA_888 [86]3 years ago
8 0
Chemistry is the study of substances—that is, elements and compounds.
amid [387]3 years ago
8 0

Chemistry is the study of substances—that is, elements and compounds.

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Why are redox reactions often written as net ionic equations?
Scorpion4ik [409]

Answer:

A. To focus on only those ions that form the precipitate

Explanation:

Net ionic equations cancel out the ions that appear on both sides of the reaction because they essentially don't participate in the reaction. This is very useful when dealing with redox reactions because are complicated enough without spectator ions being in the way, so they help focus on those ions that actually form the precipitate.

Key Terms

  • Spectator Ions: an ion that does not take part in the chemical reaction.
  • Net ionic equations: a equation where  ions that appear on both sides are canceled out.
  • Redox reaction: an oxidation-reduction reaction.
3 0
3 years ago
CH, +<br> ,<br> 0, → _CO, +<br> Н,0<br> Balance chemical equation
Flura [38]

Answer:

2 CH2 + 3 O2 = 2 CO2 + 2 H2O

Explanation:

This is what I think that you meant by the question listed. When balancing a chemical equation, you want to make sure that there are equal amounts of each element on each side.

Originally, the equation's elements looked like this: 1 C on left & 1 C on right; 2 H on left & 2 H on right; 2 O on left and 3 O on right. Because these are not balanced, you need to add coefficients.

When adding coefficients, you need to make sure that all of the elements stay balanced, not just one that you are trying to fix. I know that some equations are really difficult to balance, and when that is the case, there are equation balancing websites that can help out.

However, what always helps me is making a chart and continuing to keep up with the changes I am making. It is a trial and error process.

6 0
3 years ago
What was the original pressure in a rigid container if the new pressure is 82.5atm and the temperature was raised from 44C to 67
zhenek [66]

Answer: 54 atm

Explanation:

I did 67/82.5 then got 0.8121212121. I them divided 44 by 0.81212121 and got 54.1791044776

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In the United States, electrical power plants are the main source of energy for homes and factories. Energy resources provide th
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Fossil fuels:
-Coal
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3 years ago
How is the AHfusion used to calculate the energy required to vaporize a
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Hope u do well :) ik this maybe hard but you’ll get through it , the answer is D !
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