Food Chemistry: Acids

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7
• Acids; pH greater than 7
• Bases; pH greater than 7
• Bases; pH less than 7

Tags

CCSS.RI.9-10.4

CCSS.RI.9-10.4

CCSS.RI.6.4

CCSS.RI.7.4

CCSS.RI.8.4

Which of the following is acidic?

• shampoo

• baking soda

• orange juice

• water

What do acids taste like?

• Sweet
• Sour
• Bitter
• Dry

An acid has a pH

• higher than 7

• lower than 7

• 7

• greater than 14

Which of the following hazard warning labels should be posted on a bottle of concentrated HCl?

• 
• 
• 
• 

State the colour of a strong acid in Universal indicator.

• Red

• Green

• Blue

• Purple

What happens when you mix an acid with a base?

• it stays an acid

• it stays a base

• neutralization occurs and forms water and a salt

How can you tell if something is an acid, base or salt?

• use an indicator

• taste it

• mix it with water

• add food coloring

What are examples of indicators?

• litmus paper only

• pH meter

• Universal Indicator

• All of the above are indicators

A neutralisation reaction is a reaction between 

• Acid and a Base 
• Acid and water 
• Base and water 
• None of the above 

Tags

NGSS.MS-PS1-2