Abeka Chemistry L7 Quiz 2

What is the first thing that someone who wears contact lenses should do if a chemical gets into his/her eye?

• Close his/her eye for at least 15 minutes.

• Make a TikTok about it.

• Flush his/her eye with water.

• Seek emergency medical care.

Which is the proper way of diluting acids?

• Pour the acid into the water.

• Pour the water into the acid.

• Pour the acid and the water at the same time.

• Alternate pouring acid and water.

What is the first step for obtaining a reagent from a glass-stoppered bottle?

• Tilt the bottle to moisten the stopper.

• Moisten the neck of the bottle with the stopper.

• Remove the stopper with the back of the hand.

• Read the label twice.

Which is the proper way to test chemical odors?

• Deeply inhale from a long distance.

• Slowly move the sample past your nose.

• Quickly sniff from a short distance.

• Gently waft the odors toward your nose.

Which of the following can be heated using a burner?

• glass beaker

• rubber stopper

• graduated cylinder

• reagent bottle

In which of the following laboratory situations is eye protection NOT needed?

• Filtering a mixture

• lighting a burner

• cleaning glassware

• Eye protection is always needed.

What is the correct way to dispose of most unused liquid chemicals?

• Combine them into a single beaker.

• Pour them into designated waste containers.

• Pour them into the sink with plenty of flowing water.

• Return them to their bottles for future use.

What is this piece of laboratory equipment called?

• Test tube
• Erlenmeyer flask

• Evaporating dish

• Petri dish

What is this laboratory equipment called?

• Erlenmeyer flask

• Test tube

• Beaker

• Cup

What is this laboratory equipment called?

• Beaker

• Cup

• Bottle

• Test tube