Answer:
The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
sorry if im wrong
Explanation:
I think that the answer is A because if you think about water for an example. When water turns into ice, it's still technically water, just the molecules are frozen. The water is physically changed. It could also see why you think it is B but I don't think so completely. It doesn't really make sense to me. So I'd choose A. It's definitely not C or D.
Ghdjtxjcjxkvjxkvuyfj jdkdg
Answer:
d) Make it flexible
Step-by-step explanation:
Raw hides dry out to form a hard material that can decay with an offensive smell when they become wet.
Tanning converts the protein of the raw hide into a stable material that will stay flexible and not decompose when it gets wet.
a) is <em>wrong</em>. The purpose of tanning is to soften the leather.
b) is <em>wrong</em>. You smooth the leather manually with fine sandpaper.
c) is <em>wrong</em>. Tanning does not impart water resistance. It prevents the leather from putrefying when it does get wet.
