Answer:
Ligands
Explanation:
Ligands are small molecules that transmit signals in between or within cells. Ligands exert their effects by binding to cellular proteins called receptors.
<span>a pure substance that can be separated into different elements by chemical means</span>
Water, H2O, HOH these are all the same compound just worded differently
Answer:
B
Explanation:
you're moving the decimal 8 spots to the left so it can only be B
Answer:
moles of water in
of water.
Explanation:
Mass of water = 
Molar mass of water = M = 18 g/mol
Moles = n = 

So, there are
moles of water in
of water.