Chem Review

Flashcard maker : Lily Taylor
mega.
1,000,000 (10^6)
kilo
1,000 (10^3)
deci
.1 (10^-1)
centi
.01 (10^-2)
milli
.001 (10^-3)
micro
.000001 (10^-6)
Number of Protons in
65 Zn2+
30
30
Number of Nuetrons in
65 Zn2+
30
65 is the number of protons and nuetrons.
65-30= 35 nuetrons.
Number of electrons in
65 Zn2+
30
The charge is 2+ so you subtract two from the proton number to get electron number.
30-2= 28 electrons
predict the charge on a selenide ion
-2
Name the compound, CuBr2
copper (II) bromide
Name the compound, B4S6
tetraboron hexasulfer
(two non-metals use greek prefixes)
what is empirical formula for C6H3N3O6
Divide by LCD.
C2HNO2
calculate molar mass of Mg(BrO2)2
Look up on periodic table, and add them together. Multiply Br*2 and 02*2.
A=248.11
Combination Reaction
A reaction that has two elements as a reactants and one compound as a product is called….
decomposition
separation of a substance into two or more substances
combustion reaction
a chemical reaction that occurs when a substance reacts with oxygen (CHO), releasing energy
single displacement
one element trades places with another element in a compound: A + BC –> AC + B
double displacement
anions and cations of two different molecules switch places, forming two entirely different compounds: AB + CD –> AD + CB

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