Answer:

Step-by-step explanation:
Any time a number has a negative exponent that means that the resulting number will be a fraction (ex.
). Therefore this number is the smallest number.
Anytime a number has an exponent of 0, it will always equal 1
The balanced equation for the given reaction 
<h3>What is a double replacement reaction?</h3>
A double replacement is a chemical reaction that takes place in which two reactants swap cations or anions to produce two distinct products.
Whenever the cations representing one of the reactants interact with the anions from another reactant to produce an insoluble ionic compound, a precipitate occurs.
The balanced equation for the given reaction:

Learn more about double displacement reactions here:
brainly.com/question/17127386
#SPJ1
This is a difference of squares problem. You just have to make sure every term is a perfect square and that there is subtraction in the problem.
Answer:
105 divided by 7
Step-by-step explanation:
to find out you need to divide