Solute of solution = 17.8 g
Solvn = 198 g
% = 17.8 / 198
w% = 0.089 x 100 = 8.9% by mass
hope this helps!
Half-life is the time it takes for the radioactive material's mass to decrease by half.
So, half of 96 is 48
half of 48 is 24
half of 24 is 12
half of 12 is 6
96->48->24->12->6
You count how many arrows (->) there is.
Which is 4
Then you use the 12 minutes the question gave you to do:
12 divided by 4
= 3
So, one half-life (Or the time it takes for the radioactive material's mass to decrease in half) is 3 minutes
and every 3 minutes it will decrease by half.
The correct answer here would be A because its chemical name is sodium carbonate which is more basic than sodium bicarbonate, if you added soda ash to the solution then that would increase the ph of the solution
Answer:
increase the rate of a reaction without being consumed by the reaction
Explanation:
- Enzymes are biochemical catalysts that increase the rate of chemical reactions.
- They increase the rate of a chemical reaction without being consumed by the reaction.
- Enzymes increase the rate of chemical reactions by decreasing the activation energy of the reactants.
- Catalysts such as enzymes do not affect the free energy change of a chemical reaction (delta G). Therefore, delta G for a catalyzed and non-catalyzed reaction is equal.