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ohaa [14]
3 years ago
8

Plz help me and I promise I will make you he brainiest

Chemistry
1 answer:
a_sh-v [17]3 years ago
6 0

Answer:

2

Explanation:

1 is definitely wrong

density must be lower to atop another liquid

in 3 ,I consider the example of water and oil whi has a lower boiling point

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What two statements makes primary and secondary succession similar? 10 points
Dvinal [7]

Explanation:

I want to say either a or b because primary is based on the habitat and whatever happens after while secondary is the result to disturbance causing an effect

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3 years ago
Which of the following is not a response?only one
HACTEHA [7]

Answer:

'djweidj

d

Explanation:

7 0
3 years ago
An aqueous solution of glycerol, c3h8o3, is 48.0% glycerol by mass and has a density of 1.120 g ml-1. calculate the molality of
garik1379 [7]
Answer is: <span>the molality of the glycerol solution is 10.03 m.
V(solution) = 100 mL.
m</span>(solution) = V(solution) · d(solution).
m(solution) = 100 mL ·1.120 g/mL.
m(solution) = 112 g.
m(glycerol) = ω(glycerol) · m(solution).
m(glycerol) = 0.48 · 112 g.
m(glycerol) = 53.76 g.
m(water) = 112 g - 53.76 g.
m(water) = 58.24 g ÷ 1000 g/kg = 0.05824 kg.
n(C₃H₈O₃) = m(C₃H₈O₃) ÷ M(C₃H₈O₃).
n(C₃H₈O₃) = 53.76 g ÷ 92 g/mol.
n(C₃H₈O₃) = 0.584 mol.
b(C₃H₈O₃) = n(C₃H₈O₃) ÷ m(H₂O).
b(C₃H₈O₃) = 0.584 mol ÷ 0.05824 kg.
m(C₃H₈O₃) = 10.027 mol/kg.

4 0
3 years ago
Can you explain me this question?
Deffense [45]
Where is the question?
5 0
3 years ago
What is the mass of 1.9 moles of beryllium bromide (BeBr_)
Korvikt [17]

Answer:168.820182 gram using the molecular weight calculator and the molar mass of BeBr2.

Explanation:

6 0
3 years ago
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