That statement is true
it was easy to organize 'all' the elements in a group of threes because back then they only knew about 15 - 20 elements
hope this helps
Answer:
C. Kidneys filter wastes from the bloodstream and produce urine
Explanation:
Answer:
If it takes more energy to break the original bonds than is released when the new bonds are formed, then the net energy of the reaction is negative. This means that energy must be pumped into the system to keep the reaction going. Such reactions are known as endothermic.
Explanation:
Identify<span> each </span>bond<span> as either </span>polar<span> or nonpolar.</span>
The process by which wind removes surface materials is called abrasion.