45.0 mL of a 0.149 M Na2CO3 solution completely react with a 0.150 M HNO3 solution according to the following balanced chemical equation: Na2CO3(aq) + 2 HNO3(aq) + 2 NaNO3(aq) + CO2(g) + H2O(1)
What mass (in grams) of carbon dioxide is formed?

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?