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Tom [10]
3 years ago
11

How many moles are in 47.5 g of Ca? A.2.85 e 25 B.1.18 mol C. 7.89 e-23 D.1900 mol

Chemistry
1 answer:
docker41 [41]3 years ago
3 0
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yes your right its is 4

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because all plants use energy from the sun to make food and grow

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5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat Cu?
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5 0
3 years ago
WILL GIVE BRAINLIEST ANSWER
OleMash [197]
The correct Answer based on my calculations is C
7 0
3 years ago
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How many daltons is in an ion with 15 protons, 16 neutrons and 17 electrons?
Vera_Pavlovna [14]
31  
A dalton is the same as an atomic mass unit. And an atomic mass unit is approximately the mass of a nucleon (proton or neutron) such that the mass is 1 g/mol. So in this problem you have 15 protons and 16 neutrons, so the number of daltons is 15 + 16 = 31.
8 0
3 years ago
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