11/8 notes

Question 1

empirical formula

Answer 1

lowest interger ratio

Question 2

products combustion reactions always have

Answer 2

CO2 and H2O. Break weaker bonds to form stronger ones

Question 3

Why is the empirical formula also the “final” formula for metallic and ionic compounds?

Answer 3

the empirical formla is also the final formula for metallic and ionic compounds is because it shows the smallest whole number ratio between cations and anions

Question 4

For covalent compounds, why might the empirical formula not be the “final” molecular formula?

Answer 4

the empirical formula might not be the final molecular formilar because of thea ctual molar mass whihc could be larger than that of the empirical formila

Question 5

what is a combustion reaction

Answer 5

compound and O2 reacting

Question 6

what are hydrocarbons and why are they good fuels

Answer 6

hydrocarboms are C and H in different combinations and they are the product of combustion reactions

Question 7

What are the products of a combustion reaction for fuels containing C, H, O?

Answer 7

H2O and CO2