Explanation:
there are 8 atoms of hydrogen
We can change a gas to a liquid by INCREASING the temperature and DECREASING the pressure
Chemical changes<span> occur when a substance combines with another to form a new substance, called </span>chemical<span> synthesis or, alternatively, </span>chemical <span>decomposition into two or more different substances.
So which one do you think is the answer?</span>
Friction <span>is most responsible for slowing a bicycle down when the brakes are applied</span>
