Review Week of 9-11

Element or compound?
O₂

• Element
• Compound

Which set of properties, intensive or extensive, are based on the size of a sample?

• intensive

• extensive

What kind of physical property is this? Density

• intensive

• extensive

fireworks exploding and producing bright colors

• physcial change

• chemical change

When do you say that a mixture is heterogeneous ?

• The particles are evenly distributed.

• The components can not be identified.

• The components are easily identified.

• The particles are completely dissolved in the other substance.

Contains two or more atoms combined

• Elements
• Compounds
• Mixtures

Which of the following is not a property of metals?

• brittle
• malleable
• lustrous
• conductive

The horizontal rows on the periodic table are called:

• periods

• elements

• groups

• matter

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Calculate the density of the cube.

• 2 g/cm³
• 4 g/cm³
• 6 g/cm³
• 8 g/cm³