Midtrimester 2 Review

If you accidentally break some glass, you should tell a teacher and then dispose it in a...

• Trash Can

• Hazardous Waste

• Sharps Waste

• Follow the instructions on the assignment

The bottom square on the NFPA hazard diamond shows the _______ hazard

• Health

• Fire

• Instability

• Special

This type of glassware is used for small chemical reactions

• Erlenmeyer Flask

• Test Tube

• Beaker

• Graduated Cylinder

• 500

• 5

• 0.005

• 0.00005

What is the volume shown? Include 1 uncertain digit

• 2 mL

• 2.1 mL

• 2.15 mL

• 2.154 mL

A sphere (r=2 cm) has a mass of 10 g. What is the density?

• 133.33 g/mL

What charge do halogens typically have when in their "most stable ion" state?

• +1

• +2

• -1

• -2

An element has a shiny lustre, conducts heat but not electricity. It is a solid at room temp. It would be classified as a...

• Metal

• Non-metal

• Metalloid

• Semi-metal

Elements that have the same number of protons but different number of neutrons are called.....

• Allotropes

• Isotopes

• Nuclear

• Misanthrope

Solid iodine, when heated, will sublimate into a purple gas. What kind of change is this?

• Physical

• Chemical