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its because when you burn something, its also known as 'oxidizing' it, and this adds oxygen to the chemical, therefor sometimes giving it more weight!
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Why is saliva heaviery that water?
It is heavier due to the fact that it contains salts and other substances dissolved in the saliva. You would say it is 'denser' not heavier.
Petrol is a compound containing carbon and hydrogen when it is burnt in an engine it reacts with oxygen what are some of the substances called?
carbon dioxide.
What is observed when an emulsion is subjected to centrifugal?
The heavier substance in the emulsion should collect in the bottom of the tube, with the lighter upper layer remaining above. The two substances come out of the emulsion.
How many quarts are in 13 pounds?
You can't directly convert a measurement of volume to a measurement of weight without a defined substance you are measuring, as certain substances are heavier per quart than others.
Is nitrogen heavier than oxygen?
it is heavier
Can you get back burnt substances to their original state?
No, you can't get back burnt substances to their original state as combustion is an irreversible reaction.
What becomes heavier after getting burnt?
Magnesium becomes heavier after it is burnt. This is because the magnesium has chemically bonded with oxygen to form magnesium oxide. The oxygen adds the extra weight.
Does magnesium get heavier when burnt?
Yes, because it reacts with the oxygen in the air to form a new compound.
Why is coal a mixture?
It has burnt substances of a vast diversity including trees, animals etc.
Why is saliva heaviery that water?
It is heavier due to the fact that it contains salts and other substances dissolved in the saliva. You would say it is 'denser' not heavier.
What are 2 reasons why density is a useful property identifying substances?
Some substances look alike and the density can help you determine which is which. It also helps to tell which is heavier than the other.
Petrol is a compound containing carbon and hydrogen when it is burnt in an engine it reacts with oxygen what are some of the substances called?
carbon dioxide.
Is outer planets made of heavier material than a inner planet?
No because the inner planets are made of rocky and hard substances and the outer planets are made of gassy lighter substances.
What are advantages and disadvantages of winnowing?
Disadvantages of WinnowingWinnowing is defined as a method in which heavier components of the mixture are separated from the lighter substances with the help of wind but this process does not work for materials heavier than grains like stones
What substances can be burnt to produce light and heat energy?
There are many substances, but I'll will list only a few: coal, wood, oil, fat, methane, gasoline, jet fuel, gunpowder, hydrogen, and diesel fuel.
How is settling used in sewage treatment?
Human waste is heavier than water, so it sinks to the bottom. Then, the water is pumped through a pipe leaving the heavier substances behind, and the waste is disposed of.Hope this helps. :)
What is inside smoke?
Inside smoke is water vapour, products of the combustion which may contain carcinogenic substances, and unburnt or partly burnt particulates.
