Which of the following BEST represents 3.0 moles of an element?
Select one answer
Š
2....
Chemistry, 07.09.2021 15:30 gonzalesalexiaouv1bg
Which of the following BEST represents 3.0 moles of an element?
Select one answer
Š
2.02 grams of H
B
14 grams of N
C
4 grams of He
D
27 grams of Be
Answers: 3
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What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?
Answers: 1
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In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids
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Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10Ć1010). if her stock has a good year and gains $3.20 billion (3.20Ć109) in value, what is her new net worth?
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Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
Mathematics, 28.10.2020 16:30
Mathematics, 28.10.2020 16:30
Mathematics, 28.10.2020 16:30