General Chemistry Flashcards
Compounds can be separated by ____________ changes while mixtures can be separated by ____________ changes
chemical; physical
When separating using filtration, ___________ particles are captured in the filter and ___________ particles pass through into the filtrate
large; dissolved
Distillation separates substances based on differences in _____________________
boiling point
When a solid changes phase directly to a gas, mass _____________
does not change
When reading glassware, you record a number up to __________________ decimal place
one estimated
The percent composition of a compound is ________________
always the same
When a hydrocarbon is combusted, all the carbon ends up in _______ and all the hydrogen ends up in _________
CO2; H2O
The diatomic elements
Br2 I2 N2 Cl2 H2 O2 F2
For glucose, C6H12O6 is the ____________ formula and CH2O is the ___________ formula
Molecular; empirical
Percent yield formula
% Y = (experimental/theoretical) * 100%
Percent error formula
% E = |(experimental – theoretical)/theoretical| * 100%
The amount of product produced and energy exchanged during a reaction is determined by the _______________________
Limiting reactant
Ions that always produce soluble ionic compounds
SNAP
Sodium, nitrate, ammonium, potassium
During a chemical or physical process, mass and ___________ are conserved
Charge
Dilution formula
(M1)(V1) = (M2)(V2)
