Hydrogen is composed of H atom and oxygen is composed of O atom. For water, it is composed by both H and O atom. If you burn hydrogen in oxygen, you can get water. And if you electrolysis water, you can get hydrogen and oxygen.
Answer:
B. it is a community of plants,animals and there physical surrounding.
Answer:
put a test tube over the opening, remove it and quickly put a lit splint near the mout or in the tube. if you hear a squeaky pop it is hydrogen.
Explanation:
hydrogen ignites in air.
Answer:
<u>Group 2 is the correct answer.</u>
Explanation:
<u>Chlorine has a charge -1. It means that X is +2 so that the formula is XCl2. </u>
Idk look it up on another website
