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Amiraneli [1.4K]
3 years ago
5

When designing a experiment, a__________ is always needed to ensure you are able to compare.

Chemistry
2 answers:
kumpel [21]3 years ago
7 0
A model because of u make a mini model than u are designing the experiment and you can compare them.

Please give me brainliest!!!
siniylev [52]3 years ago
3 0

Answer:

hypothesis

Explanation:

i think

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Answer:

Igneous rock is the type of rock that forms as a result of cooling an crystallization

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