radioactivity, A and B, solutions

Which of the following pH values represents the weakest alkaline solution? 

• 9.5

• 12.3

• 7.9

• 10.8

Identify the pH value that indicates a basic solution.

• 3

• 7

• 9

• 5

The pH scale ranges from 0 to 14. Which of these pH values represents a strong base?

• 1

• 5

• 10

• 12

Which category do lemon juice, tomato juice, and coffee belong to?

• salts

• neutral substances

• bases

• acids

Grace is helping her mom clean the kitchen and notices that the cleaning product they are using contains NaOH. She wonders if NaOH is considered an acidic or basic substance. Can you help her find out?

• Acidic

• Basic

• Neutral

Kai is cleaning the windows at home using a household window cleaner that contains ammonia. What is the likely pH of ammonia?

• 3

• 7

• 4

• 12

• 6

Which ion is primarily responsible for the acidic nature of a solution?

• Chloride ion

• Hydrogen ion

• Ammonium ion

• Nitrate ion

When sugar is mixed into 150 mL of tea, what is the solvent?

• sugar

• tea

• milk

• lemon juice

Approximately how many grams can be dissolved of KCl at 50⁰ C?

• 18 grams

• 38 grams

• 42 grams

• 95 grams

Tags

NGSS.HS-PS3-4

During a science experiment, Olivia was trying to dissolve sugar in water. She noticed that after adding a certain amount, no more sugar would dissolve. What is the term used to describe this type of solution?

• Saturated solution

• Unsaturated solution

• Supersaturated solution

• Dilute solution