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5 Cards in this Set
- Front
- Back
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Why would you blott the outside of a cyclinder dry? |
Excess liquid= Excess mass Ensures water is at the same amount |
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Why are repeats done? |
Concordant results and to have an average |
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What is an advantage of percentage mass? |
Allows comparison and same starting weights |
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Why are bungs used ? |
Prevent water evaporating |
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How would use a control group? |
A control group are there to give a comparison so they would not be given what is given to the test group |
