I do not see any mistakes so I think you’re good!
When you’re substance either starts to smell, smoke, explode, change color. Any of those happening are proof of a chemical reaction.
Answer:
2.4 %
Explanation:
.15 mole * ( 23 + 16 + 1) gm / mole = 6 gm in solution
250 cm^3 of water solvent weighs 250 gm
6 gm / 250 gm = 2.4 %
The force which acts on an object without coming physically in contact with it is called non-contract force. The most familiar example of a non-contract force is weight. In contrast, a contact force is a force applied to a body by another body that is in contact with it.
I think is cells is the function
