Answer: option B. The number of the outer most energy level for elements in that period
Explanation:
Answer:
continental drift
Explanation:
pangaea was once what was the cobtenentd one after the earth plates shifted enough to split apart pangea
It is an isotope of Calcium, which has the symbol Ca
In a chemical formula, the part to the left of the arrow represents the reactants. The reactants are all the chemical elements that will react with each others to make the products (which will be on the right part of the arrow).
Example:
H2 + O2 --> H2O
H2 and O2 are the reactants (on the left part of the arrow) and H2O is the product (on the right side of the arrow)
Hope this helps! :)
First you have to look at the mole ratios of the reactants and products and that ratio is 2:2:2 or you can reduce that to 1:1:1. That means an amount of peroxide will produce the same amount of oxygen gas. If there are 8 mol of peroxide will give 8 mol of oxygen gas
