acidity and alkalinity year 7

The pH scale ranges from

• 1-7

• 0-14

• 0-20

• 1-14

A pH of 2 would be a

• weak base

• neutral

• strong acid

• weak acid

• strong base

A pH of 8 would be a

• weak base

• neutral

• strong acid

• weak acid

• strong base

What colour is a neutral pH

• Green

• Red

• Orange

• Purple

_____ has a neutral pH

• Bleach

• Water

• Orange Juice

• Blood

Acids AND bases can be corrosive

• True

• False

An indicator will ______________ when it is in contact with an acid or base

• Bubble
• Form a new substance
• Change color
• Stay the same color

Acid taste ....................... .

Rasa asid adalah .................... .

What is the pH scale used to measure?

• temperature

• weight

• acidity or alkalinity

• density

What is the pH value of acidic solutions?

• Equal to 7

• More than 7

• Negative

• Less than 7