Free Printable NZ Yr10 Acids & Bases

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NZ Yr10 Acids & Bases

Total questions: 52

Worksheet time: 54mins

Name

Class

Date

Which of the following statements is true concerning acids and bases?

acids and bases don't react with each other

acids mixed with bases neutralize each other

acids mixed with bases make stronger bases

acids mixed with bases make stronger acids

Neutral solutions have a pH of:

Which is true?

pH of less than 7 is basic; pH of more than 7 is acidic

pH of less than 7 is acidic; pH of more than 7 is basic

HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?

Acid

Base

Neither (Neutral)

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

acid

base

salt

A neutralization reaction will (almost) always produce...

water & salt

water

salt

water & carbon

Scale that ranges from 1- 14

acid

base

salt

What is considered to be in the middle of the pH scale

acidic

neutral

basic

indicator

If there is excess hydrogen ions, the solution will be...

acidic

basic

10.

If there is excess hydroxide ions, the solution will be...

acidic

basic

11.

Zn(OH)₂ is an example of a...

acid

base

salt

12.

NaCl is a ...

acid

base

salt

water

13.

In a ____ reaction, an acid and a base produce a salt and a water.

concentrated

decomposition

dilute

neutralization

14.

What are the products to a neutralization reaction?

H₂ + Ionic Salt

H₂O + Ionic Salt

H₃O⁺ + Ionic Salt

OH^- + Ionic Salt

15.

Complete the following reaction:

HCl + Mg(OH)₂ -->

MgCl₂ + H₂O

Mg +H₂O

MgCl₂ + H₂

MgCl₂ + H₂O + CO₂

16.

Almost all liquids are either acids or bases to (some degree)

True

False

17.

Scientists use something called a “pH scale” to measure how acidic or basic a liquid is.

True

False

18.

pH is a number range from 0 to 10.

True

False, its 0 to 14

19.

Acids can be dangerous

True

False

20.

Acids are man-made only.

True

False

21.

Lemons and Oranges have acid in their juice.

This is what makes them taste so sour.

True

False

22.

Humans do not have acids in our body.

True

False - Stomach Acids and Saliva

23.

Acids are bitter and bases are sour

True

False - Acids are sour and bases are bitter

24.

What is the name of the ionic compound, LiOH?

lithium oxide

lithium hydroxide

lithium carbonate

Lager Ho

25.

The substances that you start with in a reaction are the ...

products

reactants

alkaline earths

alkali metals

26.

The substances that are created during a reaction are called ...

products

reactants

alkali metals

alkaline earths

27.

What is the chemical formula of lithium chloride?

LiCl

LiCl₂

Li₂Cl

28.

What is the chemical formula for lead(II) oxide?

Pb₂O₂

PbO₂

PbO

Li₂O

29.

What is the correct word equation for the reaction of lithium with oxygen to produce lithium oxide?

llithium $\leftarrow$ oxygen + lithium oxide

lithium $\rightarrow$ oxygen + lithium oxide

lithium oxide $\rightarrow$ lithium + oxygen

lithium + oxygen $\rightarrow$ lithium oxide

30.

What does an oxygen atom do to become an oxide ion?

gains 2 electrons

loses 2 electrons

gains 1 electron

loses 2 protons

31.

What is the chemical formula for aluminium hydroxide?

ALOHA

A(OH)₂

Al(OH)₃

AlOH₃

32.

What is the name of the ionic compound, Ca(OH)₂?

cobalt chloride

calcium hydroxide

calcium hyperoxygen

calcium oxide

33.

What is the name of this ionic compound, PbCO₃

lead carbide

platinum carbonate

lead(II) carbonate

platinum carbide

34.

If I gain electrons I become

Positive because I've added to my atom

negative because I've added electrons

same because i'm balanced

equal because now I have electrons

35.

What is the chemical formula of aluminium carbonate?

Al₂(CO₃)₃

AlCO₃

AlCO

Al₃CO₃

36.

What is the word equation for the formation of water from the reaction of hydrogen gas and oxygen gas?

water $\rightarrow$ oxygen + hydrogen

water $\rightarrow$ hydrogen + oxygen

hydrogen + oxygen $\rightarrow$ water

oxygen $\rightarrow$ hydrogen + water

37.

What are the products in the following word equation?

hydrochloric acid + sodium $\rightarrow$ sodium chloride + hydrogen

sodium only

sodium chloride only

sodium chloride and hydrogen

hydrochloric acid and sodium

38.

What is the chemical formula of ammonium hydroxide?

NH₄OH₂

NH₄OH

(NH₄)₂OH

Al(OH)₃

39.

What is the chemical formula for ammonium carbonate?

NH₄₂CO₃

NH₄(CO₃)₂

NH₄CO₃

(NH₄)₂CO₃

40.

Metal + Water yields ___________

Metal Oxide + Hydrogen

Metal Hydroxide + Hydrogen

A + B

Metal Oxide

41.

Metal + Oxygen yields __________________________

Metal Oxide + Water

Metal Oxide + Hydrogen

Metal Oxide

Metal Hydroxide + Hydrogen

42.

Metal + Acid yields _____________________

Salt + Hydrogen

Salt + Water + Carbon Dioxide

Salt + Water

Salt + Alkali

43.

Acid + Carbonate yields _____________________

Salt + Hydrogen

Salt + Water + Carbon Dioxide

Salt + Water

Salt + Alkali

44.

Which Salt is form with the following acid- Hydrochloric Acid

Chloride

Sulfate

Nitrate

45.

Which Salt is form with the following acid- Sulfuric Acid

Chloride

Sulfate

Nitrate

46.

Which Salt is form with the following acid- Nitric Acid

Chloride

Sulfate

Nitrate

47.

What is the chemical formulae for Hydrochloric acid?

H₂SO₄

HNO₃

HCl

48.

What is the chemical formulae for Nitric acid?

H₂SO₄

HNO₃

HCl

49.

What is the chemical formulae for Sulfuric acid?

H₂SO₄

HNO₃

HCl

50.

What is the word equation for Neutralization?

Acid + Alkali ---> Salt + Water

Acid + Carbonate ---> Salt + Water + Carbon Dioxide

Acid + Alkali ---> Salt + Water + Carbon Dioxide

Acid + Carbonate ---> Salt + Water

51.

What are the two products of Neutralization?

Salt + Water

Salt + Water + Carbon Dioxide

Salt + Water + Hydrogen

52.

Which is a way Salt can be formed?

Acid + Alkali

Neutralization

Metal + Acid

All of the above

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NZ Yr10 Acids & Bases

Total questions: 52

Worksheet time: 54mins

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