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stellarik [79]
3 years ago
14

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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Which of the following is a statement of Hess's law?
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Answer:

C

Explanation:

the enthalpy of reaction is independent of the reaction path

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the diagram below shows DNA molecules. What do the broken lines connected to hydrogen atoms represent in this diagram?
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Adenine and guanine are purine derivatives and thymine and cytosine are pyrimidine derivates.

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Svet_ta [14]

Answer:

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Graph of the relationship between mass and thermal energy
elixir [45]

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It should look something like the graph below.

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