Answer:
hope this helps.answer is in the picture
Answer:
As the thermal energy of matter increases, its particles usually spread out, causing the substance to expand.
Explanation:
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Answer:
the two spectator ions are; K(+) and NO3(-)
Explanation:
First off, let's write out the balanced chemical equation for the reaction;
3K2CO3(aq) +2Fe(NO3)3(aq) ----> 6KNO3(aq) + Fe2(CO3)3(s)
In order to identify which ions are spectators, we have to break the equation down to an ionic equation. This is done by splitting all aqueous compounds into ions while leaving the solids, liquids as they are.
We have;
K(+) + CO3(2-) + Fe(3+) + NO3(-) ---> K(+) + NO3(-) + Fe2(CO3)3(s)
Spectators ions are pretty much those ions that do not undergo a change in the reaction. Spectator ions always have the same number of moles and charge in both sides of the reaction.
Upon observing the ionic equation, we can tell that the two spectator ions are; K(+) and NO3(-)
Answer:
The molecules in a solid are very close together and move very slowly. As the mixture was shaken in the ice, the cold slowed the molecules down, and they moved closer together. The liquid turned into a solid.
Explanation:
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Answer:
1. PE
2. KE
3. PE
4. KE
5. KE
6. PE
7. KE
8. KE
9. PE
10. PE
Explanation:
Think about it this way, potential energy is stored energy while kinetic energy is active energy.
