Review Chemical Reactions
Authored by Jessica Black
Chemistry
10th - 12th Grade
NGSS covered
Used 19+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which observation does not indicate a chemical rxn has taken place?
formation of a precipitate
production of gas
production of heat and/or light
freezing
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solid produced as a result of the reaction between two aqueous solutions is
a precipitate
a reactant
a molecule
a soluble product
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the symbol "g" beside a formula in a chemical equation represent?
the substance is a gas
the chemical produces heat
the chemical is dissolved
the chemical is a catalyst in water
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of reaction would occur when the reactants are Sn + AgN?
synthesis
decomposition
single displacement
double displacement
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To balance a chemical equation it may be necessary to adjust the
subscripts
coefficients
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A chemical equation is considered balanced when the
coefficients of the reactants equal the coefficients of the products
same number of each kind of atom appears in the reactants and products
products and reactants are the same chemicals
subscripts of the reactants equal the subscripts on the products
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of change produces a new substance?
physical
chemical
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
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