Introduction to Chemistry

Which substance is a pure substance?

• Tap Water
• Ocean Water
• 24k Gold
• Air

Tags

NGSS.MS-PS1-4

The temperature at which a solid substance starts to become a liquid?

• Solubility
• Melting Point
• Density
• Hardness

Tags

NGSS.MS-PS1-4

Which of the following would be the capacity of one substance to dissolve in a liquid ?

• Solubility
• Melting Point
• Density
• Hardness

The Density of an object is calculated by using this equation:

• Volume * Mass
• Length * Width * Height
• Mass / Volume
• Volume / Mass

Which substance is a mixture?

• Diamonds
• Ocean Water
• 24k Gold
• Distilled Water

The mass per unit volume of a substance is called ___?

• Hardness
• Melting Point
• Solubility
• Density

You could only use Hardness as a property for ....

• Tap Water
• Diamonds
• Air
• Lemonade

What would you have to do if you start with 1 loaf of bread and wanted to double the mass?

• Cut the loaf in half
• Do nothing
• Bake another identical loaf of bread
• mold the bread into the shape of a pumpkin

If you cut a loaf of bread in half, each individual half would have...

• half the volume
• double the volume
• the same volume
• no volume

If the mass of an object is 15 grams and the volume is 3 cm³, what would the density be?

• 18 g/cm³
• 12 g/cm³
• 45 g/cm³
• 5 g/cm³