Polyatomic Ions, SI Units & Metric Prefixes

Vocabulary flashcards covering common polyatomic ions, SI base units, and metric prefixes.

Hg2^2+ (Mercury(I))

Mercury(I)

NH4^+ (Ammonium)

Ammonium ion; positively charged polyatomic ion (NH4^+

NO2^- (Nitrite)

Nitrite ion; conjugate base of nitrous acid; -1 charge.

NO3^- (Nitrate)

Nitrate ion; conjugate base of nitric acid; -1 charge.

SO3^2- (Sulfite)

Sulfite ion; conjugate base of sulfurous acid; -2 charge.

SO4^2- (Sulfate)

Sulfate ion; conjugate base of sulfuric acid; -2 charge.

HSO4^- (Hydrogen sulfate / Bisulfate)

Hydrogen sulfate (bisulfate) ion; derived from sulfuric acid.

OH^- (Hydroxide)

Hydroxide ion; base; -1 charge.

CN^- (Cyanide)

Cyanide ion; -1 charge; conjugate base of hydrocyanic acid.

PO4^3- (Phosphate)

Phosphate ion; -3 charge.

HPO4^2- (Hydrogen phosphate)

Hydrogen phosphate ion; -2 charge.

H2PO4^- (Dihydrogen phosphate)

Dihydrogen phosphate ion; -1 charge.

NCS^- / SCN^- (Thiocyanate)

Thiocyanate ion; -1 charge; can be written as NCS− or SCN−.

CO3^2- (Carbonate)

Carbonate ion; -2 charge.

HCO3^- (Hydrogen carbonate / Bicarbonate)

Hydrogen carbonate (bicarbonate) ion; -1 charge.

ClO^- / OCl^- (Hypochlorite)

Hypochlorite ion; -1 charge.

ClO2^- (Chlorite)

Chlorite ion; -1 charge.

ClO3^- (Chlorate)

Chlorate ion; -1 charge.

ClO4^- (Perchlorate)

Perchlorate ion; -1 charge.

C2H3O2^- (Acetate)

Acetate ion; -1 charge.

MnO4^- (Permanganate)

Permanganate ion; -1 charge.

Cr2O7^2- (Dichromate)

Dichromate ion; -2 charge.

CrO4^2- (Chromate)

Chromate ion; -2 charge.

O2^2- (Peroxide)

Peroxide ion; -2 charge.

C2O4^2- (Oxalate)

Oxalate ion; -2 charge.

S2O3^2- (Thiosulfate)

Thiosulfate ion; -2 charge.

Kilogram (kg)

SI unit of mass; symbol kg.

Meter (m)

SI unit of length; symbol m.

Second (s)

SI unit of time; symbol s.

Kelvin (K)

SI unit of thermodynamic temperature; symbol K.

Ampere (A)

SI unit of electric current; symbol A.

Mole (mol)

SI unit of amount of substance; symbol mol.

Candela (cd)

SI unit of luminous intensity; symbol cd.

Mega (M)

Metric prefix meaning 10^6 (one million).

Kilo (k)

Metric prefix meaning 10^3 (one thousand).

Hecto (h)

Metric prefix meaning 10^2 (one hundred).

Deka (da)

Metric prefix meaning 10^1 (ten).

BASE (---)

Base value in the prefix system; equals 1 (reference).

Deci (d)

Metric prefix meaning 10^-1 (0.1).

Centi (c)

Metric prefix meaning 10^-2 (0.01).

Milli (m)

Metric prefix meaning 10^-3 (0.001).

Micro (μ)

Metric prefix meaning 10^-6 (0.000001).

Nano (n)

Metric prefix meaning 10^-9 (0.000000001).