Base your answer to the question on the information below. Some dry chemicals can be used to put out forest fires. One of these chemicals is NaHCO3. When NaHCO3(s) is heated, one of the products is
CO2(g), as shown in the balanced equation below.
2NaHCO3(s) + heat - Na2CO3(s) + H2O(g) + CO2(9)
Which is a correct numerical setup for calculating the percent composition by mass of carbon in the product Na2CO3?
1
12
X100
23+12 +16
X100
23+ (2x12) + (3x16)
12
3
X100
(223)+12+(316)
X100
(223)+6+16

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

Cis the answer ur welcome if i get it wrong u don't have to me