Exploring Acids and Alkalis

What is the pH range of the pH scale?

• 0-10

• 1-14

• 0-14

• 1-10

Draw a 2D diagram of a test tube

Name a property of alkalis

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Where would water be on the scale?

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What does a lower pH number indicate about a substance?

• It is a stronger alkali

• It is a weaker acid

• It is a stronger acid

• It is neutral

What does a higher pH number indicate about a substance?

• It is a stronger acid

• It is a weaker alkali

• It is a stronger alkali

• It is neutral

Red litmus indicator will stay (a)   in an acid , turn (b)   in an alkali and stay red in a neutral substance. Blue litmus indicator will turn (c)   in an acid, stay (d)   in an alkali and stay blue in a neutral substance.

• red
• blue
• green

What is the purpose of a Universal Indicator?

• To measure temperature

• To measure weight

• To measure acidity or alkalinity

• To measure distance

Mark where vinegar would be on the scale

Tags

NGSS.MS-PS1-2

What colour does a strong acid typically show on the pH scale?

• Red

• Green

• Blue

• Yellow