Elements, mixtures and compounds

• How do you swap and drop?

  • look at the two elements ions
• What is an isotope?

  Atoms of the same element with the same numbers of protons but difference numbers of neutrons in their results.
• what is a cat ion?

  A positive charge ion.
• What is an anion ion?


  A ion with a negative charge.
• what is the equation to work out the relative atomic mass?

  (mass of isotope 1 x abundance of isotope 1 )+( mass of isotope 2 x abundance of isotope 2) / 100
• What will happen if you mix nitrate and potassium iodide?

  Colourless to orange.
• What would happen if u add sodium hydroxide solution to copper sulphate?

  Turned cloudy in the liquid.
• What would happen if you added vinegar to bicarbonate of soda?

  Bubbled up and smell filled the room.
• What would happen if you added magnesium strips to copper sulphate solution?

  Temperature change
• What would happen if you burned hydrogen gas?

  Squeaky pop
• What are the 5 chemical changes?

  Sound, gas formation, precipitate, temperature change, colour change.