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Chemical Equations College prep
a solvent is
If a rock is placed in water and doesn't dissolve, it is considered
Chemical Equations College prep
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1
If a rock is placed in water and doesn't dissolve, it is considered
insoluble
aqueous
an electrolyte
soluble
2
a solvent is
the substance that the solute dissolved into
a type of solute
always insoluble
a mixture of two things
3
When I burn a hydrocarbon in oxygen and it makes carbon dioxide and water, what type of reaction is it?
single replacement
combustion
synthesis
decomposition
4
What is the balanced coefficient of KOH in the reaction? K
(s)
+H
2
O
(L)→
KOH
(aq)
+H
2(g)
2
3
4
1
5
The ion charge on the Mg in MgCl
2
is...
+2
+3
+1
+4
6
How many phosphate ions are in 4Ca
3
(PO
4
)
2
4
1
2
8
7
when water fills the spaces between ions, this is called
non-electrolyte
insoluble
hydration
the law of conservation of mass
8
When an ionic substance is a strong electrolyte, it is also
insoluble
a solid
a precipitate
soluble
9
a solution is
a mixture when a solute dissolves in a precipitate
a gas
another word for aqueous
a solid
10
What type of reaction is this: Mn+CuO ➟ MnO
2
+ Cu
single replacement
synthesis
decomposition
double replacement
11
There are only ___ diatomic molecules.
6
9
8
7
12
The general formula A + B -> AB is an example of a(n)
double replacement reaction
combustion reaction
decomposition reaction
synthesis reaction
13
What type of reaction is this? NaHCO3 ➟ Na + H2 + CO3
single replacement
synthesis
combustion
decomposition
14
Acid base neutralization reactions are a type of
combustion reaction
decomposition reaction
double replacement reaction
single replacement reaction
15
A net ionic equation shows
only the spectator ions
all of the ions that react in a chemical equation
Only the reactants of a reaction
all of the ions that are present in a chemical equation
16
Aqueous means
a compound is insoluble
a precipitate formed
a compound is dissolved in water
a compound is a solid
17
What is the identity of the precipitate formed when Na
2
CO
3
and CaCl
2
are mixed?
CaCO3
NaCl
Na2Cl2
Ca3CO2
18
What are the four phase subscripts?
s, l, g, aq
l, s, m, q
aq, s, v, l
qa, liq, s, vap
