___________ is non-metal that is liquid at ordinary temperature and pressure.
Carbon
Bromine
Phosphorous
Sulphur
The properties of ____________ are entirely different from those of its constituent.
Molecules
Compounds
Mixtures
Alloys
__________ of an element is an abbrevation for its full name.
Symbol
Chemical properties
Physical properties
Reactivity
_________ is liquid at room temperature.
Gold
Copper
Mercury
Iron
___________ are the substance present in a mixture.
Elements
Constituent
_______________ are classified as metals non-metals and metalloids.
Colloids
A compound containing silicon and oxygen is
Common salt
Silica
Copper sulphate
Water
__________ is a compound made up of hydrogen and oxygen combined in the ratio 2:1 by volume.
Carbondioxide
Sand
Hydrogen peroxide
Two or more elements combine together in a fixed ratio to form a new substance called
Atom
Molecule
Element
Compound
Each ____________ can be described by its formula, usually called molecular formula.
Atoms
