
Acids and Bases
Authored by Lisa Thompson
Science
7th Grade
NGSS covered
Used 14+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What base has a pH of 8.5?
Blood
Soap
Baking Soda
Drain Cleaner
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a water solution, how do acids differ from bases?
Acids form salts, but bases do not
Acids turn litmus blue, while bases turn litmus red
Acids form hydrogen ions (H+), while bases form hydroxide ions (OH-)
Bases form salts, but acids do not
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Marti took a balloon and filled it with 14 grams of baking soda. She then put 40 mL of vinegar into an empty water bottle. Marti stretched the balloon onto the top of the bottle and recorded the mass. She then flipped the balloon up so the baking soda fell into the vinegar. She observed it bubbling and could hear it fizzing. Marti laughed as the balloon filled with the carbon dioxide that was given off. After the reaction stopped, on the bottom of the bottle, Marti notices a white and clear substance. She remembers that she had learned that when you mix an acid (Vinegar) and a base (baking soda), you create
acid and metal
acid and base
base and water
salt and water
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which has a pH below 7?
Acid
Base
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What methods can you use to measure the pH of a solution?
Observing color or clarity
Measuring mass or volume
Measuring density or electrical conductivity
Using acid base-indicators or pH meters
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which pH value indicates the most basic solution?
7
8
3
11
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is the most likely pH for a solution of a weak acid?
1
5
11
14
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