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Archy [21]
3 years ago
9

According to the law of conservation of matter, the number of ________ is not changed by a chemical reaction.

Chemistry
2 answers:
shutvik [7]3 years ago
5 0

According to the law of conservation of matter, the number of atoms is not changed by a chemical reaction.


Taya2010 [7]3 years ago
4 0
According to the law of conservation of matter, the number of  Atoms<span> is not changed by a chemical reaction. 
</span><span>

 They're the same before and after a chemical reaction</span>
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A _____ activation energy is required to break the double bonds of unsaturated hydrocarbons. high extreme large low
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A large activation energy is required to break the double bonds of unsaturated hydrocarbons.

<h3>What are Unsaturated hydrocarbons ?</h3>

Unsaturated hydrocarbons are defined as the hydrocarbons in which double or triple bonds are present between two adjacent carbon atoms. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is CnH2n and CnH2n-2

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So the dissolution equation of NaI is:
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Which of the following characteristics is common to both acids and bases? a. They produce ions when dissolved in water. b. They
dsp73
<span>a. They produce ions when dissolved in water.

acids in water

</span>

<span>HA + H2O --> H3O+  + A-</span>

HA  --> H+  + A<span>-</span>

bases

B + H2O -->  OH -  +  BH+

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The part of the atom involved in a chemical reaction is the electron cloud. The electron cloud is the part of the atom surrounding the nucleus.
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