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What gives fire its colors?

Fire mainly gives out heat, light and other reaction products (soot, coal). What you mean is actually the flame, the visible part of fire.The colour of the flame depends on the amount of oxygen involved. If the oxygen level is very high it will give out a blue colour, the less oxygen the fire receives, the less thoroughly the fire burns, resulting in soot particles in the fire. The red in fire means more soot particles.


What color does copper II nitrate turn with fire?

Copper (II) nitrate burns with a blue-green flame, characteristic of copper compounds.


What color of fire is the hottest?

Technically, all colours of fire are the same temperature, but with colour, they get more condensed/concentrated; for instance, red fire could be as hot as blue fire, but blue fire would appear hotter to the touch because it is more concentrated. Anyway, from least condensed to most it goes: Red, Blue, Green, Purple, White.


What will happen if sugar is put over a fire?

It will melt. If left there for too long, it will burn, and change colour.


What is the opposite color of purple?

The opposite of the colour purple on a colour wheel is yellow. To figure this out you need to understand the concept of primary and secondary colours. If the colour you have is a primary colour (one of red, yellow or blue) then the opposite colour is the secondary colour resultant from mixing the two remaining primary colours. If the colour you have is a secondary (purple, green or orange) then the opposite colour is the primary not involved in the making of the secondary colour.