A student weighs a sample of sugar and records the measurement. He then writes down his his observations on the appearance of the sugar describing it as a white crystalline solid. Explain why both of these pieces of information represent data that the student collected.
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Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
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Physics, 22.06.2019 08:00
If a balloon is taken outside on a very cold day, what will occur?
Answers: 1
Physics, 22.06.2019 13:20
Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron
Answers: 2
A student weighs a sample of sugar and records the measurement. He then writes down his his observat...
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