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Mix with bromine water (orange), if a double bond is present (alkenes) then the bromine water will be decolourised.

Meiosis - cell division to form gametes (sex cells), each gamete contains half the number of chromosomes than in a normal cell. Mitosis - division of body cells during normal growth, each cell contains a ...

Themes include any from the given list: Supernatural - seen most powerfully when Heathcliff is grieving Catherine when he asks for her spirit to walk the earth. Nelly refers to Heathcliff as many things i...

Firstly, Take equation 1 (2y+4x=14) and divide it all by 2. This gives y+2x=7. Next make Y the 'subject' AKA put it on it's own. To do this Subtract 2x from both sides. Now we have Y=7-2X. Here you can se...

Species richness is the number of species found in an area- you simply count the number of different species. Species evenness is how evenly spread the population is across the species in an area- if you ...