Answer:
<em>When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide.</em>
Answer:
7. orbit
8. A comet
9.gas giant
10.moons
11.gravity
12.meteoroids
13.craters
14.super sized
Explanation: idk if 14 is right but yea your welcome
An independent variable<span> is the </span>variable<span> that is changed or controlled in a scientific </span>experiment<span> to test the effects on the </span>dependent variable<span>. </span>
