Chemistry Quiz Grade 9 Flashcards
What does a Triangle symbol mean
This frame looks like a traffic yield sign.
It means that the container is dangerous.
What does a octagon symbol mean
This frame looks like a traffic stop sign.
It means that the contents inside the container are dangerous.
What is a pure substance
A pure substance is made up of only one kind of matter, and has a unique set of properties
What is a compound
A chemical combination of two or more elements
Circle with a square lots of them
What is a mixture
Is a combination of pure substances
A bunch of circles with blue and grey circles
What is a mechanical mixture (heterogenous)
The different substances in a mixture are visible
What is a homogeneous (solution)
different substances are not visible one substance is dissolved in another
What is suspension
A cloudy mixture, partials of one substance are held within another
Colour and lustre
The light a substance reflects gives it colour and lustre
What is conductivity
is the ability of a substance to conduct, electricity, or heat, called a conductor ex most metals
What is density
is the amount of mass in a given volume of a substance ex pure water
What is ductility
any solid that can be stretched into wire ex copper
What is hardness
Substance’s ability to resist, being scratched ex dimonds
What is malleability
substance that can be poured or rolled into sheets ex aluminum
What is viscosity
Is the resistance of a fluid to flow ex syrup
