How many grams of NaBr are in 1.69 moles of NaBr?

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?