Unit 8 Science
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Charles Martinez
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10 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The chemical name for marble is calcium carbonate. In the experiment shown below, equal masses of marble lumps, small marble chips and powdered marble were placed into equal volumes of dilute hydrochloric acid.
In which beaker reaction be fastest?
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The chemical name for marble is calcium carbonate. In the experiment shown below, equal masses of marble lumps, small marble chips and powdered marble were placed into equal volumes of dilute hydrochloric acid.
Which factor affects the speed of reaction?
Concentration
Catalyst
Surface Area
Temperature
Tags
NGSS.MS-PS1-2
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The chemical name for marble is calcium carbonate. In the experiment shown below, equal masses of marble lumps, small marble chips and powdered marble were placed into equal volumes of dilute hydrochloric acid.
How would you test for this gas and what would tell you that the test is positive? Tick (/) two correct answers.
To test for hydrogen you use a lighted splint
The test for carbon dioxide is to bubble it through limewater
If the gas burns with a squeaky pop then the gas is hydrogen.
If the gas is carbon dioxide the limewater will turn milky
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
When the reaction between the calcium carbonate and dilute acid occurs, carbon dioxide gas is given off.
What is the name of the salt formed in this reaction?
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Samuel was investigating the reaction below. He placed 4 g of magnesium ribbon into a beaker of dilute sulfuric acid. He timed how long it took for the magnesium to ‘disappear’. It took 45 seconds.
Which is the correct word equation for the reaction between magnesium and sulfuric acid?
magnesium + sulfuric acid --> magnesium sulfide + hydrogen
magnesium + sulfuric acid --> magnesium sulfate + water
magnesium + sulfuric acid --> magnesium sulfide + carbon dioxide
magnesium + sulfuric acid --> magnesium sulfate + hydrogen
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Samuel was investigating the reaction below. He placed 4 g of magnesium ribbon into a beaker of dilute sulfuric acid. He timed how long it took for the magnesium to ‘disappear’. It took 45 seconds.
How would you test for the gas given off in this reaction?
Tick (/) 2 correct answers.
To test for hydrogen you use a lighted splint
The test for carbon dioxide is to bubble it through limewater
If the gas burns with a squeaky pop then the gas is hydrogen.
If the gas is carbon dioxide the limewater will turn milky
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Samuel was investigating the reaction below. He placed 4 g of magnesium ribbon into a beaker of dilute sulfuric acid. He timed how long it took for the magnesium to ‘disappear’. It took 45 seconds.
Which of the following would result in the magnesium ribbon ‘disappearing’ in less than 45 seconds?
Warming the acid
Using 5 g magnesium ribbon
stirring the mixture
adding water to the acid
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-3
NGSS.MS-PS3-4
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