In a chemical reaction, atoms are rearranged to form new molecules. However, atoms are neither created nor destroyed. What happens to the total mass of the atoms involved in a chemical reaction?
A.
It will decrease if two molecules combine to form a single compound.
B.
It will increase if a new compound is formed during the reaction.
C.
It always changes as the atoms are rearranged into new molecules.
D.
It will stay the same no matter how the atoms are rearranged.

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

Which of the following is the most likely outcome of global warming

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.