Periodic Table
Polyatomic ions
Reactions
Random
Atoms
100
Periods
What is horizontal rows of the periodic table called
100
hypochlorite
What is ClO-1
100
single-displacement
What is 2Al(s)+3CuCl2(aq) ---> 2AlCl3(aq)+3Cu(s)
100
physical
Density of a substance is measured which property of matter is observed
100
Mass number
What is the sum of the protons and neutrons in an atom
200
Group
What is a column of the periodic table called
200
Sulfite
What is SO4
200
Synthesis
What is 2CaO+2H2O ---> 2Ca(OH)2
200
Solid, Liquid, Gas, Plasma
What are the four states of matter
200
atomic number
What is the number of protons in the nucleus of an atom
300
one
Which group in the periodic table forms ions that have a valence of 1+
300
Perchlorate
What is ClO4-1
300
decompostion
What is AB ---> A+B
300
Compound
What is water
300
energy level
What is one of the discrete allowed energies for electrons in the atom
400
Periodic Table
What is a chart that organizes the elements by their chemical properties and increasing atomic number
400
Silver acetate
What is AgC2H3O2
400
single-replacement
What is 3ZnCl2+2Al ---> 3Zn+2AlCl3
400
Strong force
In an atom, which force holds the protons and neutrons together in the nucleus
400
electrons
What is transferred or shared when two atoms react chemically
500
group 18
Which group on the periodic table is least likely to be involved in a chemical reaction
500
Ammonium nitrate
What is NH4NO3
500
combustion
What is Ca+H2O ---> Ca(OH)2+H2
500
remains constant
According to the Law of Conservation of energy, the total amount of energy on the universe
500
isotopes
What is an atom of the same element with different numbers of neutrons called
M
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