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6. soft water takes a ______ amount of soap to create a ______.
- small, lather
- large, lather
- large, froth
- small, froth
7. Name two things to describe an Alkane and what is it's general formula ?
- unsaturated
- single bond, saturated, CnH2n+2
- double bond
- CnH2n
8. chlorination does what ?
- kills bacteria
- chlorifies the water
- purifies the water
9. harm water forms what?
- slime
- limescale
- dirt
- gunge
10. A polymer is lots of......
11. small alkAne molecules can be used as fuel because....
- they are reactive
- they burn well
- they melt easily
12. when potassium is burnt it produces a ________ flame.