This is an example of a chemical property.
Answer:
carbon dioxide, salt, copper
They expect the Universe to continue expanding. Right now, the evidence is that the expansion is speeding up. They also expect entropy to continue increasing, so in the distant future, there will not be any free energy left to support life, for example.
Answer:
give the ion X
<h2>X2+</h2>
Explanation:
it is positively charged because the protons are more than electrons
A. phase changing. Physical change is any change in matter that involves the substance going from one physical state to another, and phase change is most commonly used to describe transitions between solid, liquid and gaseous states of matter.
