science Flashcards
what does WHMIS stand for?
Workplace Hazardous Materials Information System
What is a pure substance
a mixture with only one kind of substance
what is a mixture
a mixture with many different substances
what’s a mechanical mixture
a mixture where you can see the parts that make up that mixture
whats a solution
a mixture where you cant see what makes it up
what is a suspension
a mixture that will separate over time
what is a colloid
a mixture that will not separate on their own/ easily
what is a homogeneous mixture
made up of many parts but no individual is visible
heterogeneous mixture
made up of many parts that are all visible
what is a solute?
the substance that is being dissolved
What is a solvent?
the substance that is doing the dissolving
water in known as the…
Universal solvent
what is a saturated solution
no more solute will dissolve
what is an unsaturated solution
more solute can be dissolved
factors affecting SOLUBILITY
type of solute, type of solvent, temperature
factors affecting the rate of dissolving
temperature, size, stirring
What does T-MAS stand for/tams
tiny, moving ,attracted, spaces
what is solubility
the maximum amount of solute that will dissolve
how does the t (t-mas) change when a liquid freezes
nothing
how does the m (t-mas) change when a liquid freezes
moves slower
how does the a (t-mas) change when a liquid freezes
particles move closer together
how does the s (t-mas) change when a liquid freezes
expands taking up more space(volume)
how does viscosity change when heated
viscocity is lowerd and becomes thinner
what has a HIGHEST viscosity level (tube thing)
lamp oil
what has the LOWEST viscosity level (tube thing)
honey
