Hello,
Here are your answers:
The proper answers to your questions are....
1. "Chemical bond energy is converted to kinetic energy"...... which causes it to release energy around its surroundings!
2. "Endothermic reactions"...... Endothermic reactions are the things that absorb the energy!
If you need anymore help feel free to ask me!
Hope this helps!
Answer:
A substance that is composed only of atoms having the same atomic number is ... 36 grams of an unknown liquid at its boiling point,.
Answer: It showed that all atoms contain electrons.
Explanation:
- J.J. Thomson's experiments inside a cathode ray tube in the presence of an electric field showed that all atoms contain tiny negatively charged subatomic particles "electrons".
- Also, Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."
- Furthermore, Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny positively-charged nucleus.
- Then, Rutherford proposed the nuclear model of the atom based on these results.
Answer:
the answer should be six months
