Honors chem: Safety/sig figs test

How would you write -5.6 x 10-3 in standard form?

-0.0056

Express the following in standard notation: 8.025 x 10-8

0.00000008025

How do you write 1001 in scientific notation?

1.001 x 10 3

Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.

1.1 m2

Round 1047.78 to three sig figs

1050

Calculate the answer to the following problem and round the final answer to the correct number of sig figs: 4.627 / 0.00371 =

1250

If you get something in your eyes, how long do you need to use the eyewash station?

15-20 mins

Which measurement contains 3 sig figs?

20.0

Which of the following is NOT correct scientific notation?

20.35 x 10 4

Calculate the answer to the following problem and round the final answer to the correct number of sig figs: 24.567 + 0.04478 =

24.612

Determine the number of sig figs in the following measurement: 72,100 g

3

Calculate the answer to the following problem and round the final answer to the correct number of sig figs: 278 x 11.70 =

3250

. Determine the number of sig figs in the following measurement: 25.03 L

4

Multiply: (3.4 x 105)(1.2 x 10-3)

4.08 x 10 2

Express the following in scientific notation: .000457

4.75 x 10 -4

How would you write 4.3756 x 10 4 in standard form?

43,765

Which of these could be a correct measurement for the volume shown? Click on this image for a better look.

43.0

Determine the number of sig figs in the following measurement: 0.036653 m

5

How would you write 0.0005 in scientific notation?

5 x 10 -4

What is the Volume in the graduated cylinder

63.5

Which is the correct measurement of the red line?

8.50

Which of the following IS considered safety equipment in our classroom?

Eye wash station, emergency shower, fire extinguisher.

What is the correct procedure to mix acid and water?

acid is gently poured into water (A comes before W)

If you're not sure what do during a lab activity:

ask a teacher

You are heating a substance in a test tube. Always point the open end of the tube...

away from all people

When in the lab you should wear...

closed-toed shoes

Helping to clean up the lab or classroom is the job of

each and every student

Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.

false

You are allowed to enter the chemical preparation/storage area any time you need to get an item

false

You should report accidents to the teacher __.

immediately

Keeping your area neat and clean is important because:

it helps prevent accidents

Which of the following should not be worn during laboratory activities?

loose clothing, dangling jewelry, opened-toed shoes

I can perform my own experiments with lab materials ___.

never

What is the CORRECT procedure for students to follow if a chemical is spilled?

tell the teacher so you can dispose of it properly