Molar mass calculation for Cl^2

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery