Chemical Reactions
Authored by Wayground Science
Science
6th Grade
NGSS covered
Used 12+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One reactant with a mass of 4 grams, is combined with another reactant, with a mass of 12 grams, in a sealed container. After the reaction, what is the most reasonable prediction for the total mass of the products of this reaction?
3g
4g
12g
16g
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true regarding the atoms involved in a chemical reaction?
The same number of each type of atom will always be present before and after a chemical reaction takes place.
Some of the atoms present before the reaction will always be lost during a chemical reaction.
Some of the atoms will always be changed into a different type of atom by a chemical reaction.
During a chemical reaction, atoms will always be combined into much larger molecules.
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The mass of all the reactants must equal the mass of all the products. Matter is neither created nor destroyed.
chemical reaction
chemical formula
law of conservation of mass
product
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process by which one or more substances change to produce one or more different substances is
chemical reaction
reactant
subscript
coefficient
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the number that tells you how many atoms of an element there are in a chemical formula?
coefficient
subscript
law of conservation of mass
product
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tells you how many molecules are present?
reactant
product
subscript
coefficient
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Subscripts for a particular kind of molecule never change because these numbers describe how many of an atom type are present in a particular molecule.
True
False
Tags
NGSS.MS-PS1-1
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