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WorksheetsBerocca tables, rate of reaction and surface area
Total questions: 10
Worksheet time: 7mins
How does the SURFACE AREA of the reactant affects the RATE of the reaction?
Larger Surface = Slower reaction
Smaller surface = Faster reaction
Larger Surface = Faster reaction
It doesn't affect the reaction
What flavor were the berocca tablets?
banana
orange & mango
pineapple
lemon
What is a characteristic of ALL Chemical reaction?
It can be reversed
It creates heat
It can not be reversed
it creates bubbles
What does "rate of reaction" means ?
is the SPACE in which the reaction occurs
is the TIME the reaction takes to occur
is the BEGINNING of the reaction
is the RESULT of the reaction
What was the INDEPENDENT variable in the experiment? (what you changed)
the amount of water
the amount of the berocca tablets
the surface area of the reactant
What was the DEPENDENT variable? (what you measured/observed)
the size of the tablets
the rate of the reaction
the bubbles
the colour change
What was the controlled variable? (what you keep the same)
the rate of the reaction
the amount of the tablets, the beaker, the amount of water, the watch
the surface area of the reactant, the beaker, the amount of water, the watch
What happened to the surface area of the tablet when you cut it in halves / quarters ?
The surface area of the tablet decreased
The surface area of the tablet increased
The surface area of the tablet remained the same
The surface area doubled up
Another way to speed the rate of a reaction could be...
to reduce the surface area
to use less amount of reactants
to reduce the temperature
to raise the temperature
If you heat up the reaction (increase the temperature), the rate of the reaction will be...
Faster
You can't heat up a reaction
Same
Slower
