resistance

A detailed Summary of resistance

Investigating the Rate of Reaction Between Marble Chips

Safety- must always wear safety glasses and we should be very

careful not to drop any acid.

Fair test- we must make sure that we use the same size, amount and

roughly the same mass of chips, this is because we want to keep the chips

roughly the same all the way through the experiment so that it will be a

fair test and the results we be in relation to each other, otherwise the

results will be completely different to what we will expect and it will

ruin the experiment. We must also take our readings at the same intervals

throughout the experiment i.e I will take a reading every fifteen seconds

for all of my experiments.

I predict that the more concentrated the acid the quicker the

reaction will take place, because the more concentrated the acid is then

between hydrochloric acid and calcium carbonate.

or too cold, or I could use distilled water.

the chips into the acid, push on the bung and and start the stop watch. This must

that I wanted and they look very good. The results were very accurate and so I

works are how quickly the chips are put in and then the bungplaced on and the

Approximate Word count = 4084
Approximate Pages = 16 (250 words per page double spaced)

Category: Science

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