5 points 11. If Captain America mixes 175 mls of 3.6M Na2CO3 with an excess of
Ca(OH)2, how many grams of CaCO3 would be produced? *
A. 0.63 grams
B. 6.3 grams
C. 63 grams
D. 3.6 grams

Ca(OH)2 + CO2 => CaCO3 + H2O

massa CaCO3 = 2,5 gr, Mr CaCO3 = 100

mol CaCO3 = 2,5 gr / 100 gr/mol = 0,025 mol

mol Ca(OH)2 = mol CaCO3 = 0,025 mol

Mr Ca(OH)2 = 74

massa Ca(OH)2 = 0,025 mol x 74 gr/mol 3.6 grams

mol CO2 = mol CaCO3 = 0,025 mol

V N2 = 1 liter , Ar N = 14

mol N2 = 6.3 grams

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.