1 dozen donuts = 12 donuts. In chemistry, we deal with particles of substances in groups of 600000000000000000000000. This amount of particles is known as what unit?

• pound
• liter
• mole
• gram

The mass of 1 mole of lithium is

• 3.94 g
• 600000000000000000000000 g
• 7 g
• 9.94 g

Which 4 coefficients would balance the equation in the image?

• 1,1, 1, 1
• 2, 3, 4, 3
• 1, 4, 3, 2
• 4, 3, 1, 2

According to the following equation, how many moles of the product would be produced if 3 moles of hydrogen reacted?

• 1
• 2
• 3
• 6

According to the following equation, how many moles of nitrogen would react if 6 moles of hydrogen reacted?

• 1
• 2
• 3
• 4
• 5

How many moles of aluminum sulfide are produced if 78 g of aluminum reacts (aluminum's molar mass is 27 g)?

• 0.17 mol
• 5.8 mol
• 1053 mol
• 1.4 mol

How many moles of water are produced if you have 43 g of oxygen react? (Oxygen is diatomic so an oxygen molecule has a molar mass of 32g)

• 688 moles
• 0.67 moles
• 1.5 moles
• 2.7 moles

What is the molar mass of sulfur dioxide (formula is in image)?

• 48 g
• 64 g
• 0.5 g
• 96 g

What is the molar mass of aluminum oxide (formula is in image)?

• 10 g
• 42 g
• 75 g
• 102 g

Which of the following has the greatest number of atoms?

• 1 mole of iron atoms
• 1 mole of nickel atoms
• 1 mole of zinc atoms
• They all have the same number of atoms