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Natasha2012 [34]
3 years ago
13

What might cause scientists to change a scientific theory?

Chemistry
2 answers:
nata0808 [166]3 years ago
5 0
I think the answer is c.
ioda3 years ago
4 0

Answer:

c

Explanation:

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Classify blood as a mixture or a pure substance. if blood is a mixture, classify it as either heterogeneous or homogeneous. if b
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Blood is a heterogeneous mixture. 

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Which of the following statement is true how fossil records can produce incomplete evidence of organisms that lived on Earth?
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Answer

i think b                          

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Which type of reaction occurs in the core of a nuclear reactor in a nuclear power plant? Upper H upper C l plus upper N a upper
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Answer:

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