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Alena Kulas ∙
two substances combine to form a new substance
H2+Br2-->2HBr
CH4(g) + Br2(g) -----------------> CH3Br(g) + HBr(g)
(sunlight/UV Light)
It tells you how much of a molecule is made up of each element. - APEX
They identify what phase the substances are in
-Apex
The products
Decomposition reaction
C12h24
Answer this question… Which of the following is the best definition of a physical change?
The unit of concentration is Molar = Moles/Litre.
heat
In this reaction a change of bonds of the reactants occur: the general form is:AB + CD = AD + BC
CaCO3 -> CaO + CO2
2NaCl - 2Na + Cl2. apex
In every body cell -apex
Phase change - apex