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☆☆☆☆☆Question is to be edited. What isreactions.......Not reactions it has to be reactants.
Reactants are those which come into reaction and products are those the outcome of such reaction.
CH4 + 2 O2 gives CO2 + H2O CH4 , O2 are reactants. CO2 , H2O are products.
H2+Br2-->2HBr
They identify what phase the substances are in
-Apex
A hydrocarbon-apex
2ki and 2kci
Answer this question… Which of the following is the best definition of a physical change?
All of the symbols used in chemical equations are up on the periodic table.
1 P and 5 CI
Chemical reactions change the chemical composition of the reactants; physical reactions doesn't involve a change in the chemical composition.
heat
In this reaction a change of bonds of the reactants occur: the general form is:
AB + CD = AD + BC
CaCO3 -> CaO + CO2
In every body cell -apex
Phase change - apex
