QUIZ. 1. What equipment should you use to measure 42.5 ml H Cl?

QUIZ

1.

What equipment should you use to measure 42.5 ml H Cl?

2.

What type of glassware should you use to mix two or more liquids?

3.

What is a hypothesis?

4.

What must the conclusion do in the scientific method?

5.

What is an independent variable?

6.

On a Bunsen burner, the vent on the lower part of it is used to add what to the flame? What color of flame is the hottest we use in the lab?

7.

Calculate the answers to the following problems:

a. 4.9 x 1045 + 3.2 x 1044 =

b. 6.022 x 1023 x 9.8 x 1012 =

c. 5.9 x 1045 x 3 =

8.

Write the following numbers in Scientific Notation:

a. 19,000,000b. .0023c.

6,023,000,000,000,000

9.

If I throw three darts at a dart board, and all three end up in the outside ring of the number 4, how should you describe the uncertainty?

10.

Do the following conversions:

a. 10 Dm = __________ cmb. 10 dm = __________ mc. 10 Kg = __________ dg

11.

When you are in the lab, what should you always have on?