CaCl2 +Na2CO3 ====>Nacl+CaCO3
Answer:
Explanation:
A catalyst is a <em>substance that increases the rate of a reaction by lowering the activation energy</em>. It does so by providing an alternative reaction pathway. The catalyst may react to form an intermediate with the reactant, but it is regenerated in a subsequent step so it is not consumed in the reaction. A catalyst speeds up a reaction by providing a set of elementary steps with more favorable kinetics than those that exist in its absence.
A useful dilution relationship is (M1V1)=(M2V2) where M is molarity and V is volume in liters.
(6.00M x V1) = (2.00M x .500L) (I assume you mean 2.0M)
V1= (2.00M x .500L)/6.00M
V1= 0.167L
We use the Boyle's law to solve this question. At constant temperature, the volume of a fixed mass of a gas is inversely proportional to its pressure. When comparing the fixed mass of gas at different conditions under this law, the expression below is used.
P₁V₁=P₂V₂
P₁=5.0 atm
P₂=7.0atm
V₁=3.5 L
V₂=V
5.0×3.5=7.0×V
V= (5.0×3.5)7.0
V=2.5 L
If the American system is the same, group on should be alkali metals and the answer would be frankium