3 years ago

PLZ HELPPPP

Chemistry

2 answers:

Dmitrij [34]3 years ago

8 0

Answer:

Explanation:

It has to be less than 100% efficient. There is always some cost in changing one form of energy to another especially if work is involved.

AlladinOne [14]3 years ago

6 0

Answer:

every real machine must be less than 100 because of the force that overcome friction

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Answer:

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% Error $= 002$ 5

Explanation:

The absolute error is the the difference in the measured value and the actual value of a quantity.

Here the actual value is $5.0000$ grams

The measured value is $5.001$ grams

Absolute error

$5.001 - 5.000\\= 0.001$

Percent error

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Where AE stands for absolute error and AV stands for absolute value.

$= \frac{0.001}{5.000} * 100\\$

$= 0.02$ %

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3 years ago

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Answer:

Explanation:

I think it is right not sure but hope it helped

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3 years ago

Heats of reaction calculated from bond energies and from heats of formation are often, but not always, close to each other.a. In

postnew [5]

Answer:

45.7kj

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What is 0.000005670 written in proper scientific notation?

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