Chemistry, 10.10.2020 14:01 faithiemusic8821
Choose the words to complete the sentences. A change in the thermal energy of a substance can lead to a change of state. For example, when heat is added to a solid, its particles move. Choose:
A) Faster
B) Closer together
C) Slower
D)The same speed
Once the solid gains enough thermal energy, it can change to a state. Choose:
A)Liquid
B)Gas
C)Solid
D)Frozen
Answers: 2
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Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.
Answers: 2
Choose the words to complete the sentences. A change in the thermal energy of a substance can lead t...
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