Laughing gas, N2O, also known as nitrous oxide contains 28.01 g of nitrogen in every 44.01 g of nitrous oxide. What mass of nitrous oxide can be formed from 34.50 g of nitrogen?

The label on a container of baking soda lists one ingredient: sodium bicarbonate. Which one of the following best classifies the contents in baking soda?

What is the molar mass of carbon disulfide, CS2?

How many moles of potassium nitrate, KNO3 , contains 8.68 x 1020 KNO3 formula units?

The model of the atom that shows positive sub-particles in a very small and dense center is:

A glass cylinder contains four liquid layers: mercury (d = 13.6 g/mL), chloroform (d = 1.49 g/mL), water (d = 1.00 g/mL) and ether (d = 0.708 g/mL). If a solid ball (d = 1.45 g/mL) is dropped into the cylinder, where does it come to rest?

The correct chemical formula for the binary ionic compound between Mg2+ and O2- is:

The decomposition of methane, CH4, the main component of natural gas can be used to generate hydrogen fuel. The decomposition gives carbon (C) and hydrogen (H) in a ratio of 3.00 parts by mass of carbon to 1.00 part by mass of hydrogen. How much hydrogen can be made from 62.0 g methane?

The name of the compound N2O5 is:

What is the mass of 0.500 mol of NH3?