Term 2 Grade 5 Week 6 review

Term 2 Grade 5 Week 6 review

Multiple Choice

Which is the correct set of acid properties, as described by Boyle:

• sour taste, corrosive, change litmus from red to blue

• sour taste, corrosive, change litmus from blue to red

• sweet taste, slippery, change litmus from blue to red

• sour taste, slippery, change litmus from blue to red

Multiple Choice

True or false: bases are sometimes called alkaline.

• True

• False

Multiple Choice

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

Multiple Choice

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

Multiple Choice

Which particles change the charge in atoms when ions are formed?

• Protons
• Electrons
• Neutrons
• Kittens

Multiple Choice

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

Multiple Choice

What is an ion?

• A Charged Atom

• A Large Atom

• A Small Atom

• A Cute Atom

Multiple Choice

What is an ion?

• A Charged Atom
• A Large Atom
• A Small Atom
• A Cute Atom

Multiple Choice

The pH scale measures

• the acidity of a chemical
• the reactivity of a chemical
• the boiling point of a chemical
• the electrical conductivity of a chemical

Multiple Choice

Bleach is a strong base, what is the pH level of bleach?

• 13
• 14
• 1
• 2

Multiple Choice

A solution with a pH of 8.6 would be...

• Acid
• Base
• Neutral
• Acid and Base

Multiple Choice

A solution with a pH of 3.6 would be...

• Acid
• Base
• Neutral
• Acid and Base

Multiple Choice

What is the only substance with a neutral pH of 7?

• Milk
• Orange Juice
• Water
• Blood

Multiple Choice

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

Multiple Choice

The pH scale is a range from:

• 1-7

• 0-14

• 1-14

• 1-20

Multiple Choice

The pH scale is a range from:

• 1-7

• 0-14

• 1-14

• 1-20

Multiple Choice

.................... is a compound that contains one or more hydrogen atoms and produces hydrogen ions (H+) when dissolved in water.

• An acid

• A base

• A salt

Multiple Choice

.................... is a compound that contains one or more hydrogen atoms and produces hydrogen ions (H+) when dissolved in water.

• An acid

• A base

• A salt

Multiple Choice

The reaction between an acid and an alkali

produces salt and water. This reaction is called

• acidication

• neutralisation

• alkalisation

Multiple Choice

Toothpaste contain .................. that neutralize acid formed by bacteria.

• alkali

• acid

• antacid

• slaked lime

Multiple Choice

Complete the word equation below:

Acid + alkali --> ............... + water

• water

• salt

• gold

• metal

Multiple Choice

Electricity if the flow of _____________

• electrons

• protons

• atoms

• neutrons

Multiple Choice

What is the name of a positively charged ion?

• positron
• proton
• cation
• anion

Multiple Choice

What is the name of a negatively charged ion?

• negatron
• electron
• cation
• anion

Multiple Choice

Conductors can allow electricity because of the presence of

• free ions

• free electrons

• free protons

• free atoms

Multiple Choice

If a substance forms ions in water, it is called an

• nonconductor

• electrolyte

• nonelectrolyte

• aqueous solution

Multiple Choice

If a substance forms ions in water, it is called an

• nonconductor

• electrolyte

• nonelectrolyte

• aqueous solution