Explanation:
solar and energy i had to answer this one before
Answer:
he average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance
Answer: An element is a pure substance. It can not easily be broken down into parts by physical means.
A)True
B)False
<u>The answer is true. </u>
Answer:
Student 3
Explanation:
This question lets us know something about how the density of a gas varies with temperature.
When a gas is heated, its molecules spread out and expand. When this happens, the volume of the gas increases. Remember that density is defined as mass/volume. Thus as the volume increases, the density of the gas decreases.
Therefore, the carbon dioxide rose up because the heat expanded the gas and it became less dense.
Stars are made of gas & star color is related to temperature are the correct answers.
