2points
what is a homogeneous mixture?
o
a. a combination of substances that separates into pure layers
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b. a combination of substances that settles out upon standing
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c. a combination of substances that has multiple consistencies
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d. a combination of substances that has a single consistency
submit

D.

Explanation:

Single constituency.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

answer: h+ its less than oh

explanation: