Which of the following is a way to manage asthma? *

Chemistry

2 answers:

emmasim [6.3K]2 years ago

6 0

All of these, i think but im not sure

Gala2k [10]2 years ago

3 0

Answer:

all of this

Explanation:

hope that helps

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Which sample contains a total of 3.0 x 10^23 molecules?

belka [17]

Given that 1 mole contains 6.02x10^23 molecules, 3.0x10^23 is just around half a mole. Then we check the number of moles for each choice:

A. This is approximately half a mole, since the molar mass of Br2 is 159.8 g/mol.
B. He has a molar mass around 4 g/mol, so this is 1 mole.
C. H2 has a molar mass of 2.02 g/mol, so this is 2 moles.
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Zielflug [23.3K]

Answer: 7.693 L

Explanation:

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