Answer:
Options for g Of A: 10, 20, or 30
Options for g of B: 10, 30, or 20
Explanation:
SORRY IF IM WRONG
The main difference between gas pressure and vapour pressure is that gas pressure is exerted by the gases above the surface of a substance whereas vapour pressure is exerted by liquids above the surface of a substance
7.A physical change occurs when a material changes shape or size but the composition of the material does not change.
8.Chemical properties can be observed only when the substances in a sample of matter are changing into different substances.
9. Materials can be classified as solids, liquids, or gases based whether their shapes and volume are definite or variable.
10. The Kinetic theory of matter states that all particles of matter are in constant motion.
Real salt, sodium chloride - the kind you eat - might be too drying. You can find epsom salts, magnesium sulphate, at any drug store and most grocery stores in the first aid section. Usually the packaging looks like a milk carton.
