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Worksheets

Cover page — no student questions present

Total questions: 37

Worksheet time: 19mins

Name
Class
Date
1.

Multiple Choice: Identify the choice that best completes the statement or answers the question. When acids react with which substance, carbon dioxide gas is produced and used to identify rocks?

a)

Oxygen

b)

Carbonate

c)

Nitrogen

d)

Argon

2.

Multiple Choice: Identify the choice that best completes the statement or answers the question. A substance tastes bitter, feels slippery, and turns litmus paper blue. What type of substance is it?

a)

Neutral

b)

Acid

c)

Base

d)

None of the above

3.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Litmus paper turns red when it is placed in an ----------- solution.

a)

basic

b)

neutral

c)

acidic

d)

salty

4.

Multiple Choice: Identify the choice that best completes the statement or answers the question. An acidic substance is usually:

a)

Bitter in taste and slippery

b)

Sour in taste and produces H+ ions when dissolved in water

c)

Slippery and turns red litmus blue

d)

Neutral with no effect on indicators

5.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which statement best describes an indicator?

a)

A substance that speeds up chemical reactions

b)

A substance that changes color in an acidic solution

c)

A substance that dissolves solutes

d)

A substance that reacts with bases to form salts

6.

Multiple Choice: Identify the choice that best completes the statement or answers the question. What is the neutralization reaction?

a)

It is reaction between acids

b)

It is the reaction between acid and base

c)

It is reaction between bases

d)

None of the above

7.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Citrus fruits and tomatoes are examples of ----------------------.

a)

acids

b)

bases

c)

non-metals

d)

metalloids

8.

Multiple Choice: Identify the choice that best completes the statement or answers the question. What do acids primarily damage when they are described as corrosive?

a)

Plastics

b)

Non-metals

c)

Metals

d)

Glass

9.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Litmus paper can tell if a solution is acidic, neutral or basic by changing color when placed in a solution. If you test a base with litmus paper, it will turn ____________.

a)

grey

b)

red

c)

white

d)

blue

10.

Multiple Choice: Identify the choice that best completes the statement or answers the question. When found in foods, what does a base taste like?

a)

Sweet

b)

Bitter

c)

Sour

d)

Salty

11.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Shampoo, bleach and soap are examples of -------------------.

a)

water

b)

acids

c)

bases

d)

all of the above

12.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Salt formed from a neutralization reaction is a(n) ---------------- compound.

a)

ionic

b)

covalent

c)

base

d)

none of the above

13.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Folic acid, which supports human cell growth, is mainly found in:

a)

Citrus fruits

b)

Dairy products

c)

Red meat

d)

Green leafy vegetables

14.

Multiple Choice: Identify the choice that best completes the statement or answers the question. --------------- is found in stomach, helps in digestion.

a)

Sulfuric acid

b)

Citric acid

c)

Hydrochloric acid

d)

Nitric acid

15.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Jewelers use acids mainly to determine how --------- a precious metal is.

a)

heavy

b)

pure

c)

soft

d)

shiny

16.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which of the following contain carbonate ions?

a)

Eggshells

b)

Seashells

c)

Limestone

d)

All the above

17.

Multiple Choice: Identify the choice that best completes the statement or answers the question. The properties of a base are often --------- to those of an acid.

a)

Similar

b)

Opposite

c)

Identical

d)

Unchanged

18.

Multiple Choice: Identify the choice that best completes the statement or answers the question. ..................... is an ingredient of plant fertilizers.

a)

Sulfuric acid

b)

Phosphoric acid

c)

Citric acid

d)

None of the above

19.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Sulfuric acid is commonly used as:

a)

A food preservative

b)

Battery acid

c)

A household cleaner

d)

A cooking ingredient

20.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which substance is commonly found in household cleaners?

a)

Folic acid

b)

Nitric acid

c)

Ammonia

d)

Sodium hydroxide

21.

Multiple Choice: Identify the choice that best completes the statement or answers the question. --------------- solution has a lot of solutes.

a)

concentrated

b)

diluted

c)

lime

d)

All of the above

22.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Freezing point and boiling point of a solution are affected by ---------------.

a)

Colloid

b)

Concentration

c)

Suspension

d)

None of the above

23.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which of the following is an example of a suspension?

a)

Salty water

b)

Muddy water

c)

Filtered orange juice

d)

Sugar in water

24.

Multiple Choice: Identify the choice that best completes the statement or answers the question. A mixture is formed when ------------- substance(s) is/are combined physically, not chemically.

a)

one

b)

two or more

c)

zero

d)

none of the above

25.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which of the following is an example of a solution?

a)

Muddy water

b)

Filtered grape juice

c)

Sand in water

d)

All of the above

26.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which type of mixture has components that can be clearly seen and easily separated?

a)

Pure substance

b)

Heterogenous mixture

c)

Homogeneous mixture

d)

Element

27.

Multiple Choice: Identify the choice that best completes the statement or answers the question. A colloid is a type of mixture in which the tiny, undissolved particles -------------- when left undisturbed.

a)

settle quickly when left still

b)

remain evenly dispersed and do not settle

c)

form large, visible clumps

d)

dissolve completely in the liquid

28.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which solutes stay as molecules in water, and which break into ions?

a)

Pure solutes – Organic solutes

b)

Molecular solutes – Ionic solutes

c)

Organic solutes – Inorganic solutes

d)

All of the above

29.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Solubility refers to the amount of a solute that can -------- in a given amount of solvent.

a)

Evaporate

b)

Melt

c)

Dissolve

d)

Settle

30.

Multiple Choice: Identify the choice that best completes the statement or answers the question. -------------- is the substance that needs to be dissolved in the solution while -------------- is considered the bulk of the solution.

a)

Solute – solvent

b)

Solvent – collide

c)

Suspension – saline

d)

None of the above

31.

Multiple Choice: Identify the choice that best completes the statement or answers the question. What usually happens to the solubility of a solid when temperature decreases?

a)

It stays the same

b)

It usually increases

c)

It usually decreases

d)

None of the above

32.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which method is suitable for sorting out a mixture of sand and iron?

a)

Using hot plate

b)

Using magnet

c)

Using filter paper

d)

None of the above

33.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Pressure and concentration both influence how ----------- a substance is.

a)

dense

b)

soluble

c)

colored

d)

heavy

34.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which method can be used to separate a mixture of salt and water?

a)

Using filter paper

b)

Using hot plate

c)

Using magnet

d)

All of the above

35.

Multiple Choice: Identify the choice that best completes the statement or answers the question. A colloid is a heterogenous mixture with tiny, undissolved particles that remain evenly dispersed and don’t settle when left undistributed.

a)

True

b)

False

36.

Multiple Choice: Identify the choice that best completes the statement or answers the question. Which of the following describes stainless steel?

a)

A solid solution where metals are mixed and one is dissolved in another

b)

A liquid mixture of metals

c)

A gas dissolved in a solid

d)

A heterogeneous mixture of iron and sand

37.

Multiple Choice: Identify the choice that best completes the statement or answers the question. --------- mixture is a type of mixture where the components are difficult to see and spread out uniformly throughout the mixture.

a)

Homogeneous

b)

Heterogeneous

c)

Salt

d)

None of the above