Answer:
The same number of each atom are on both sides of the equation.
The Law of conservation of mass states that matter is neither destroyed nor created in a chemical reaction. Therefore, the mass of the reactants will be equal to the mass of the products in a chemical reaction. According to the law matter is neither created nor destroyed in a chemical reaction.
Answer:
See figure 1.
Explanation:
In this case have to take into account that <u>all structures</u> must have the formula: 
. If we remember the <u>general formula for alkanes</u>: 
if we have <u>"7" carbons (n=7)</u> we will have <u>16 hydrogens</u>. Therefore all the structures that fit with this formula are alkanes.
Answer:
The 2nd one
Explanation: U answered yourself on the second one
I really think it is D! I hope this is correct for you!
