The no of millimoles of hcl required to neutralize 10 ml of 0.2m na2co3 is:
a) 2
b)4
c)0.2
d)0.4

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6