There are 15 generations in the hydroelectric grid. They each produce 30 GW of power. How many GW of power do all 15 generators produce in total?

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

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

How does science use models to gain a better understanding of concepts?