It can be a compound or a single element. An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements, butcarbon, hydrogen, nitrogen and oxygen are only a few that make up the largest portion of Earth.
I would say d.
Answer:
13=C
14=D
Explanation:
I cant explane the right formula but my answer is correct
I think it would be solubility but I’m not sure
An atom always has the same number of protons and electrons, so it has 14 electrons.
Remembe! Dont get confused between at atom and an ion. Atoms have same number of protons and electrons but in an ion it differs,
I think it’s A
because if the pH is lower than 7 than it is acidic
