Unit 1 - Chemistry (PRACTICE TEST)
Authored by Edgar Macal Jr
Chemistry
8th Grade
NGSS covered
Used 4+ times
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33 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A reaction that releases energy in the form of heat is known as . . .
a synthesis reaction
an exothermic reaction
a decomposition reaction
an endothermic reaction
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A reaction that absorbs energy in the form of heat is known as . . .
a synthesis reaction
an exothermic reaction
a decomposition reaction
an endothermic reaction
Tags
NGSS.MS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
the process by which one or more substances change to produce one or more different substances, defines ___________
conservation of mass
a chemical reaction
a chemical formula
a catalyst
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
How does this show the conservation of mass?
The masses of the products are different from the reactants
matter was destroyed at the end of the chemical reaction
matter was created at the beginning of the chemical reaction
the masses of the reactants and products are equal
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
a change to a substance that happens without forming a new substance
physical change
chemical change
double replacement reaction
combustion
Tags
NGSS.MS-PS1-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
The total mass of the reactants before a chemical reaction is the same as the total mass of the products after the reaction, because matter cannot be created or destroyed
Law of Conservation of Mass
Law of Gravity
Newton's First Law
Chemical formula
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
The number of total atoms in the reactants of a chemical reaction...
must be the same as the total number of atoms in the products of the chemical reaction.
will change depending on the products of the chemical reaction.
is either the same or different than the total number of atoms in the products depending on what type of reaction it is.
determines what type of reaction can happen.
Tags
NGSS.MS-PS1-5
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