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Chemistry, 22.06.2019 18:00
Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule
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Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?
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Chemistry, 22.06.2019 23:00
What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures
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How much heat is needed to raise the temperature of 122.5 g of water by 14.0°C? Please provide your...
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