Calculate the density of aluminum from the mass of the sample and its volume.
Mass = 18.9 g
Volume = 7.0 cm3
Give your answer to two significant figures.
Density= g/cm3

Asolution is prepared using 0.125 glucose c6h12o6 is enough water to make 250 g of total solution the concentration of the solution, expressed in parts per million is

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

What three things does a balanced equation show you?