c is correct answer of a question
Answer:
The information from Mariner 6 and Mariner 7
Explanation:
Because they had not been launched yet
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Physical Change because a new substance was not created and if it was a chemical change, a new substance would have to be created.
Answer:
The empirical formula of ribose (a sugar) is CH2O. In a separate experiment, using a mass spectrometer, the molar mass of ribose was determined to be 150 g/mol.Explanation: