If 25 kg of ice at 0c is combined with 4 kg of steam at 100c, what will be the final equilibrium temperature (in c) of the system? latent heat of fusion of ice = 3.34 x 105 j. kg-1 latent heat of steam = 2.23 x 106 j. kg-1 specific heat of water = 4180 j. kg-1.k-1

What does x represent in the formula for the compound xcl4?

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Enzymes affect the reactions in living cells by changing the