Acids and Bases and pH

Front

Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood? Options: strongly acidic, slightly acidic, strongly basic, slightly basic

Back

slightly basic

Front

The table shows the pH of several solutions. Which solution is the most acidic? Options: vinegar, milk, water, bleach.

Back

vinegar

Front

Zn(OH)₂ is an example of a...
Options: acid, base, salt, water

Back

base

Front

H₃PO₄ is an example of a ...

Back

acid

Front

List the substances from most basic to acidic: lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), milk (pH 6).

Back

bleach, baking soda, milk, lemon juice

Front

If a solution has a pH of 1.5, then litmus would turn: red, purple, blue, yellow

Back

red

Front

A sugar solution has a pH of 7. This means the sugar solution is:

acidic

,

basic

,

neutral

Back

neutral

Front

Which of these is a property of acidic solutions?

• they taste sour
• they feel slippery
• they are in many cleaning products
• they taste bitter

Back

they taste sour

Front

An unknown substance was tested and found to have an extremely high concentration of hydroxide ions, OH^-, and very low concentration of hydronium ions, H₃O⁺. Which pH would make the most sense?

Back

pH = 12

Front

What is the formula of carbonic acid?

Back

H₂CO₃