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kirill115 [55]
3 years ago
12

Anybody?i will appreciate it

Chemistry
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

fat provide 9 calories per gram

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how are you confused there just tell me the problem

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Why is it important to use chemicals of high quality (purity) and exact(correct) concentrations in experiments?​
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It is important to use chemicals of high quality and correct concentrations in experiment so that we can obtain the predictable result in an experiment

Purity of substances/chemicals is very important when performing experiments in the laboratories, because it plays an important role in the determination of the chemical properties of  substances which will have a direct effect on the result obtained from the experiment. likewise using the correct concentration of reagents

During experiments to obtain the best/predictable result in an experiment it is of best practice to make use of chemicals of high quality and also at the exact(needed) concentrations, that way the predictable result of the experiment will be obtained.

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3 years ago
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How is ethanol different from carbon dioxide?
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B

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Ethanol is C2H6O. Carbon diozidex is CO2. Ethanol has hydgrogen, where carbon dioxide does not.

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this is what is being changed throughout the experiment

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