Gr 10 Review Flashcards
Matter
Anything that take up volume (space)
Physical Properties
Observed with the senses
Can be determined without destroying the object
Chemical Properties
how a substance reacts with something else
examples of physical properties
Colour
Shape
Mass
Length
Odour
examples of chemical properties
flammability
combustion
Blue colour: Physical or Chemical Property?
physical
density: Physical or Chemical Property?
physical
flammability: Physical or Chemical Property?
chemical
solubility: Physical or Chemical Property?
physical
reacts with acid: Physical or Chemical Property?
chemical
supports combustion: Physical or Chemical Property?
chemical
melting point: Physical or Chemical Property?
physical
reacts with water to form a gas: Physical or Chemical Property?
chemical
reacts with a base to form water: Physical or Chemical Property?
chemical
boiling point: Physical or Chemical Property?
physical
neutralizing a base: Physical or Chemical Property?
chemical
physical changes in matter
- Are changes that are reversible
- No new substance is formed
- New properties may appear, but the particles of the starting substance(s) are not changed.
- It may change form or state
example of a physical change in matter
Ice melting
The new properties of the ice are temporary, because a change of state can be reversed.
The liquid water can be changed back into ice.
Chemical changes in matter
- Are changes that are irreversible
- A new substance with new properties will be formed
example of chemical changes in matter
Burnt toast
When a piece of bread is burnt, it forms a layer of charcoal on the front and back of the piece of toast. - A new substance with new properties is formed
The burnt toast cannot be turned back into bread.
leaves changing colour in the fall: physical or chemical change
chemical
matter
Anything that has mass and occupies space
2 groups that matter can be divided into
mixtures and pure substances
mixtures
Two or more substances mixed together without chemically combining in any way
pure substances
Have a definite composition and are uniform throughout the sample
2 groups that mixtures can be divided into
solutions (homogeneous)
mechanical mixture (heterogeneous)
Solutions (homogeneous)
2 mixtures but only see one phase
2 groups that pure substances can be divided into
elements and compounds
Mechanical mixture (heterogeneous)
2 or more mixtures and you can see all phases
elements
Cannot be broken down to simpler substances
Smallest piece = atom
compounds
2 or more elements chemically combined together
Which group of matter is water?
solution
Which group of matter is carbon dioxide?
compound
Which group of matter is soda?
mixture
Which group of matter is kool aid
solution
Which group of matter is propane gas
compound
Which group of matter is hydrogen gas
element
Which group of matter is pure sand
compound
Which group of matter is charcoal
element
Which group of matter is brass
solution
Which group of matter is uranium
element
Which group of matter is liquid mercury
element