C. A high standard deviation means that the average distance from the data points to the mean is high, which is what C says.
Answer:
A. Able to be lost or gained in chemical reactions.
Explanation:
Only electrons are lost or gained.
Answer:
Physical changes are when the object can be returned back into their original form. Chemical changes are when the object gets changed and can't get reversed.
Explanation:
1-physical
2-physical
3-physical
4-chemical
5-chemical
6-chemical
7-physical
8-chemical
9-chemical
10-chemical