Which one is the solution?
The water in sea water
Sea water
the salt in sea water
Which one is the solvent?
the water in sea water
sea water
Which one is the solute?
Which one is soluble in water?
Sand
Salt
Which one is insoluble?
Find the particles from a solid
Find the liquid particles
Find the gas particles
What is an exothermic reaction?
These are reactions that transfer energy to the surroundings. ie. increasing temperature
These are reactions that take in energy from the surroundings, causing the reaction mixture and its surroundings to get colder.
What is an endothermic reaction?
The equation for working out pressure is pressure = force ÷ area
Temperature is a degree of hotness or coldness the can be measured using a thermometer. It's also a measure of how fast the atoms and molecules of a substance are moving
What is chromatography?
Chromatography can be used to separate mixtures of coloured compounds. such as inks, dyes and colouring agents in food.
Chromatography is used to separate mixtures that have different boiling points.
which of these is NOT a fossil fuel
oil
coal
carbon dioxide
natural gas