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WorksheetsCHEMystery 101
Total questions: 10
Worksheet time: 5mins
Matter is....
a type of metal
anything that has mass, volume or occupies space
a charged particle that forms from an atom when it loses or gains one or more electrons
Matter can be divided into:
pure substances and mixtures
cations and anions
elements and compounds
A spoonful of sugar dissolves in water is an example of...
pure substances
heterogeneous mixture
homogeneous mixture
Aluminium, Al is a/an...
element
molecule
compound
What is the unit for molarity (concentration) ?
g/ml
g/mol
g/l
What is the value of Avogadro's constant?
6.62607004 × 10-34 m2 kg / s
6.02214086 × 1023 mol-1
8.314 J mol-1 K-1
Molecules are....
tiny particles of an element that cannot be created or destroyed
a charged particle (cation or anion) that forms from an atom when it loses or gains one or more electrons
two or more atoms that are chemically bound together
How is a cation formed?
Sharing of electrons between atoms
An atom/element accepts electron(s) to form a negatively charged ion
An atom/element loses electron(s) to form a positively charged ion
Define isotope.
Atoms with the same number of protons and neutrons
Atoms with the same number of protons, but differing numbers of neutrons
Atoms with the same number of neutrons but differing numbers of protons
What is the formula for number of mole?
mass / molar mass
mass / volume
volume / mass
