chemistry - revision book Flashcards
what is a solute?
a solute is a substance that’s dissolved in the solvent
what’s a solvent?
The liquid that the solute is dissolved in.
what’s a solution?
the mixture that a solute is dissolved in
is iron nitrate soluble or insoluble?
Soluble
why is a fertilizer soluble?
fertilizer will dissolve in rain water making it soluble
how do you get sugar back from water?
EVAPORATION - Heating the water over a Bunsen burner and the water will turn to steam, leaving the sugar behind.
what relights with a glowing splint?
Oxygen
what turns limewater cloudy?
Carbon dioxide
What Makes up 79% of the air
nitrogen
what burns with a popping noise?
Hydrogen
what are some normal fuels?
wood
ocean energy
wind energy
what are some fossil fuels?
coal
oil
natural gas
when wood burns what does it need and what does it make?
needs: oxygen and heat
Makes: carbon dioxide
some universal Indicator us added to a test tube what color does it go? And is carbon dioxide an acid/alkali/neutral gas?
The indicator goes red because carbon dioxide is an acid
put most to least reactive
zinc, magnesium, copper and iron
magnesium
zinc
iron
copper
