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Whitepunk [10]
2 years ago
9

• Qual a diferença entre o etanol 60%, 70% e 90%?

Chemistry
1 answer:
lyudmila [28]2 years ago
6 0

Lo siento pero no puedo ayudarte.

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Why would a scientist only use observations to formulate a theory rather than follow the scientific method?
Alenkinab [10]

Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

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2 years ago
According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go
alexira [117]

<u>Answer: </u>The correct answer is Silver.

<u>Explanation:</u>

Specific heat of fusion is defined as the amount of heat which is required to raise the temperature of 1 gram of a substance to 1°C. It is generally expressed in kJ/mol

We are required to find the substance which require more heat. For that we need to know the specific heat of all the substances.

The substance which have the highest specific heat, will require more heat.

The specific heat of the given substances are:

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Hence, the correct answer is silver.

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