Chemical Changes
8th Grade
•25 Qs
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Chemical Changes
Quiz
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A student observes some sugar as it is heated and burns. The student concludes that a chemical reaction has occurred. Which of the following observations about the burning sugar provides evidence of a chemical reaction? (8.5E)
Heat is added to the sugar crystals.
The sugar melts and becomes a liquid.
The temperature of the sugar increases.
Gas is produced as the sugar turns black.
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
On the following equation, how many total Hydrogen atoms are on the product side? -- (8.5F)
3
11
4
8
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on the reaction shown, which statement best SUPPORTS the Law of Conservation of Mass? (8.5F)
Zn + 2HCl -----> ZnCl2 + H2
There are more chlorine atoms in the reactant.
There are more hydrogen atoms in the product.
The number of chlorine atoms is unequal in the reactants and products.
The number of reactant atoms is equal to the number of product atoms.
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chemicals on the left of an equation that react are called -- (8.5F)
reactants
products
coefficients
subscripts
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A chemical change happens when...
substance is changed at the atomic level
bonds are broken and formed
new substance is made
all of the above!
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Which are examples of chemical change? Select THREE answers.
An egg is cooked.
Sugar dissolves in water.
A silver quarter tarnishes.
Water in a pan boils away.
Leaves in a compost pile rot.
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
This is a change in which matter changes to a different type.
Physical
Chemical
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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