WorksheetsChemical Reactions Formative Review
Total questions: 17
Worksheet time: 9mins
The chemical property of a substance is it's
ability to melt or freeze
ability to become a new substance
ability to change size or form
ability to pass a chemistry quiz
A __ change does NOT affect the chemical identity of a substance.
physical
chemical
Examples of a chemical change (more than 1)
burning
digestion
photosynthesis
sublimation
breaking
Type of chemical reaction shown.
single replacement
double replacement
synthesis
decomposition
Type of Reaction Shown.
single replacement
double replacement
synthesis
decomposition
Before the arrow in a chemical equation.
reactants
products
After the arrow in a chemical equation.
reactant
product
Type of Reaction Shown.
double replacement
single replacement
synthesis
decomposition
Type of Reaction Shown
single replacement
double replacement
synthesis
decomposition
A more reactive element replaces a less reactive element in a compound.
single replacement
synthesis
double replacement
decomposition
Elements / compounds combine to create a new compound .
double replacement
single replacement
synthesis
decomposition
Causes chemical reactions
People's stupidity
Molecular collisions
Physical changes
Nothing, they just happen
Number of oxygen atoms in 2 molecules of glucose.
1
12
6
24
Number of Hydrogen atoms in 1 molecule of caffeine.
10
20
24
1
The reactants are
The products are
The law of conservation of mass is being observed in the chemical equation.
True, because there are an equal number of hydrogen on each side and an equal number of oxygen on each side.
False, because the hydrogen atoms are equal on both sides, but the oxygen is not.
False, because the oxygen atoms are equal on both sides, but the hydrogen is not.
False, because neither type of atom is equal on both sides.
True, because the number of atoms don't have to be equal
