Answer:
evaporation
Explanation:
boiling (or vaporization)
At a certain temperature, the particles in a liquid have enough energy to become a gas. This process of a liquid becoming a gas is called boiling (or vaporization.)
After 3 half life periods you would have 5 grams of krypton left because half of 40 is 20 half of 20 is 10 and half of 10 is 5
Answer:- 2.4 mol .
Solution:- It asks to calculate the moles of formed when 1.2 moles of are reacted.
There is 2:4 mol ratio between and . So, the moles of reactant are multiplied by the mol ratio to get the moles of . The calculations are shown below:
= 2.4 mol
So, 2.4 moles of are formed when 1.2 moles of were reacted.
Answer: The molar mass and molecular weight of 4Fe is 223.38.
Electrons
Protons
neutrons
orbitals
mesons