Structure of Matter

If you have 100 mL of magnesium with a density of 1.7 g/mL, what is its mass?

• 170 g

• 150 g

• 180 g

• 160 g

How many hydrogen atoms are in CH₂O₂?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many oxygen atoms are in CH₂O₂?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many carbon atoms are in CH₃OH?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are in CH₃OH?

• 1

• 2

• 4

• 3

Tags

NGSS.MS-PS1-1

How many oxygen atoms are in CH₃OH?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which box is denser if the RED box has a mass of 50 g and the BLUE box has a mass of 100 g, both with a volume of 125 mL?

• RED box

• BLUE box

• Both are equally dense

• Cannot be determined

How can you determine the number of protons in an element if you are given just the atomic number and atomic mass?

• The atomic number equals the number of protons

• Subtract the atomic mass from the atomic number

• Add the atomic number and atomic mass

• Divide the atomic mass by the atomic number

What is a compound?

• A substance made of two or more different elements

• A single element

• A mixture of gases

• A type of molecule with only one atom

Tags

NGSS.MS-PS1-1

What is the formula for calculating density?

• Mass/Volume

• Volume/Mass

• Mass x Volume

• Mass + Volume