Question 1

Which of the following statements about the Periodic Table is correct?

Accepted Answer

The zigzag line divides the elements into metals and non-metals.

Answer

Metallic elements are found on the right-hand side.

Answer

Elements are arranged according to their chemical symbols in alphabetical order.

Question 2

Which of the following elements have chemical and physical properties similar to those of the element sodium?

Accepted Answer

Potassium

Answer

Sulfur

Answer

Magnesium

Answer

Silver

Question 3

At room temperature, ...

Accepted Answer

most metals are solids and most non-metals are liquids or gases

Answer

most metals are liquids or gases and most non-metals are solids

Answer

all metals and non-metals are solids

Answer

all metals and non-metals are liquids or gases

Question 4

Oxygen and water are required for the rusting of iron to take place. The rust formed is

Accepted Answer

a compound

Answer

an element

Answer

a solvent

Answer

a mixture

Question 5

When a substance reacts with oxygen, at least one ____________ is formed.

Accepted Answer

compound

Answer

mixture

Answer

metal

Question 6

When magnesium metal burns in oxygen gas, _____________ is formed.

Accepted Answer

a compound that has properties different from those of magnesium
and oxygen

Answer

a mixture that has the properties of both magnesium and oxygen

Answer

a mixture that has properties different from those of magnesium and oxygen

Answer

a compound that has the properties of both magnesium and oxygen

Question 7

Which of the following statements is always true of mixtures?

Accepted Answer

A mixture can consist of compounds and/or elements.

Answer

A mixture contains substances that are combined in fixed proportions.

Answer

A mixture can only be separated by chemical methods.

Answer

A mixture is either a metal or a non-metal, but not both.

Question 8

The ability of a solute to dissolve in a solvent is known as __________.

Accepted Answer

solubility

Answer

solution

Answer

dissolvability

Answer

suspension

Question 9

The rate of dissolving of a solute refers to ________________.

Accepted Answer

how fast a solute dissolves in a fixed volume of solvent

Answer

how fast a solute dissolves in any volume of solvent

Answer

how much a solute dissolves in any volume of solvent

Answer

how much a solute dissolves in a fixed volume of solvent

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