Formulae & Equations Flashcards
1
Q
Define atom
A
simplest particle of an element that can still be identified as that element
2
Q
Define molecule
A
Particle containing 2 or more atoms, (covalently) bonded together
3
Q
Define element
A
Substance made of only one type of atom
4
Q
what is the valency (most common ion charge) of Magnesium and Fluorine
A
Mg) 2+
F) 1-
5
Q
Write the formulae of the following compounds Lithium Sulfide Aluminium oxide Sodium Carbonate Calcium Hydroxide
A
Li2S
AL2O3
Na2CO3
Ca(OH)2
6
Q
Write the names of the following compounds BF3 CaH2 Br2 CuSO4
A
Boron trifluoride
Calcium hydride
Bromine
Copper(II) sulfate
7
Q
Write out the full balanced equation with state symbols
Sodium Iodide + bromine = sodium bromide + Iodine
A
2NaI(aq) + Br2(aq or l) = 2NaBr(aq) + I2(aq or s)
8
Q
Write out the full balanced equation with state symbols
Nitrogen + hydrogen = Ammonia
A
N2(g) + 3H2(g) = 2NH3(g)
