What is the property if h+12=22, then h=10

Here, subtraction property of equality is applied.

Step-by-step explanation:

The given expression is :

=>

=> h = 10

Here, subtraction property of equality is applied. This states that if we subtract from one side of an equation, we should also subtract the same number from the other side of the equation to keep the equation same.

Here in this expression, 12 is subtracted from both sides to get h = 10.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: