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WorksheetsThe rate of chemical reaction
Total questions: 10
Worksheet time: 5mins
By increasing the temperature the chemical reaction...........
increases
decreases
remain constant
The catalyst in the reaction
increases
decrease
remain constant
From the factors that affect the speed of reaction
concentration of reactants
concentration of products
concentration of the catalyst
the iron reacts fast with.........
dil Hcl
conc Hcl
dil NaoH
The reaction of dil Hcl is faster with..........
piece of iron
iron fillings
piece of cupper
By increasing the temperature, The speed of chemical reaction..............
increases
decreases
remain constant
in the thermal decomposition reactions, the reactants ........
release heat
need heat
nothing
The increase in the amount of oxygen is called...................
oxidation
reduction
decomposition
when the atom gain electrons, it .............
oxidized
reduced
no change
when sodium replace hydrogen in water, this is a...................reaction
thermal decomposition
simple substitution
oxidation and reduction
