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Pre-Lab Experiment 1 SK015

Total questions: 11

Worksheet time: 7mins

Name
Class
Date
1.

Name the lab equipment pictured

a)

Evaporating Dish

b)

Crucible

c)

Mortar and pestle

2.

Name the lab equipment pictured

a)

Tongs

b)

Forceps

c)

Spatula

3.

What is the symbol of the element: zinc?

a)

Zn

b)

Zc

c)

Zi

4.

What is the symbol of the element: chloride?

a)

Ch

b)

Cd

c)

Cl

5.

Theoretically, what is the formula unit of zinc chloride?

a)

ZnCl

b)

ZnCl2

c)

Zn2Cl

6.

Define the term compound?

a)

It is made up of only one kind of atom

b)

A set of chemical symbols showing the amount of each element present in a compound

c)

A substance composed of 2 or more elements that are chemically combined

7.

A formula with the lowest whole number ratio of elements in a compound is called

a)

Molecular Formula

b)

Chemical Formula

c)

Empirical Formula

8.

A formula with the actual whole number ratio of elements in a compound is called

a)

Molecular Formula

b)

Chemical Formula

c)

Empirical Formula

9.

What is the suggested volume of measuring cylinder needed to be used in this experiment?

a)

1 mL

b)

100 mL

c)

10 mL

10.

What gas will be released when HCl solution is poured into a crucible containing zinc powder?

a)

Oxygen gas

b)

Hydrogen gas

c)

No gas will be released

11.

From the video, what is the function of white tile?

a)

To support the hot crucible when removing it from hot plate

b)

To be placed inside the analytical balance

c)

To cover the crucible during cooling