Atoms Molecules Mixtures and Compounds
The gas used in respiration and manufactured in photosynthesis is
carbon
hydrogen
oxygen
nitrogen
oxygen
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The non-metals exist in two of the three states of matter i.e. gas and solid, atA. room temperature
B. freezing point
C. sunshine
D. oven
Substance that is able to get dissolved in the solvent is said to be
A. solute
B. solvent
C. insoluble
D. soluble
We breathe a gas. This gas is
A. hydrogen
B. oxygen
C. nitrogen
D. helium
The substance dissolved in the solvent is known as
A. solvent
B. insoluble
C. soluble
D. solute
The number of atoms of each element in a compound is known as
A. form
B. chemical formula
C. chemistry
D. composition
Hydrogen causes a balloon to lift up in
A. clouds
B. air
C. space
D. water
Substance that is unable to dissolve in the solvent is known as
A. insoluble
B. solute
C. solvent
D. soluble
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