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start learning

Question		Answer
sulphuric acid start learning		H2SO4
sulphurous acid start learning		H2SO3
hydrochloric acid start learning		HCl
Copper (I) sulphide start learning		Cu2S
copper (I) sulphite start learning		Cu2SO3
zinc hydroxide start learning		Zn(OH)2
magnesium carbonate start learning		MgCO3
ammonia start learning		NH3
ammonium start learning		NH4 +
hydroxide start learning		OH-
carbonate start learning		CO3^2-
hydrogen carbonate start learning		HCO3 -
phosphide start learning		P 3-
phosphite start learning		PO4 3-
dichromate start learning		Cr2O7^2-
nitride start learning		N 3-
nitrite start learning		NO2 -
nitrate start learning		NO3 -
sulphide start learning		S 2-
sulphite start learning		SO3^2-
sulphate start learning		SO4^2-
manganate (permagnanate) start learning		MnO4 -
molecule start learning		made from atoms
sf rules start learning		begining zeros not important, all no zeros are significant, zeros between or dp are significant
absolute uncertainty start learning		0.5 × smallest division for measurement, smallest measurement for digital instrument
% uncertainty /fractional start learning		absolute uncertainty/ measurement
in multiplication sf start learning		to the least value
in addition sf start learning		to the least d.p.
a.u. in addition start learning		adding
% uncertainty in multiplication start learning		adding
multiplication of sth with constant start learning		au is multiplied

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