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Goryan [66]
3 years ago
14

HELP PLS FOR BRAINLEST...

Chemistry
2 answers:
Andrew [12]3 years ago
8 0

Answer:

B

Explanation:

IrinaK [193]3 years ago
4 0
B!!!!!!!!:)))))))))))((((
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When driving a truck,is fuel crucial?
Natali [406]

Answer:

The answer is yes.

Explanation:

When driving any type of motorized vehicle, fuel is importatn. Fuel is what it runs on, so without it it wouldn't run. With trucks a lot more is needed because trucks are bigger, and tend to carry more than a little car does.

6 0
4 years ago
5. Flash floods occur when water collects at a faster rate than the water can be absorbed into the surrounding soil. During a la
IRINA_888 [86]

Answer:

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6 0
3 years ago
Look up the boiling points of anisole and d-limonene. which one do you expect to elute first in gas chromotograpjhy
mel-nik [20]
The primary factor that determines the elution order of compounds during gas chromatography, is the boiling point of the compounds. The lower the boiling point of a substance, the shorter retention time the substance will have. The retention time is the time it takes for the substance to be injected into the GC and reach the detector.

A lower boiling compound will elute faster (shorter retention time) than a higher boiling compound. The reason for this is the mobile phase of GC is a gas while the stationary phase is a liquid. Therefore, the more time a compound spends in the mobile phase, the faster it will elute. 

The boiling point of anisole and d-limonene are 153.8 °C and 176 °C, respectively. Therefore, anisole will have a shorter retention time since it has the lower boiling point.
6 0
3 years ago
Calculate the molality of a 5.51 M ethanol (C2H5OH) solution whose density is 0.9349 g/mL
bearhunter [10]

Molality of C2H5OH is 1.1.27m.



What is Molality?

Molality is no.of moles present in One Kg solution .

Molality is represented by m

m= no.of moles/ weigt of solution in kg

Given is Molarity= 51.30M

molar mass of C2H5OH is 46g / mol , Density =0.9349g/ ml

Density=m/V

V = 107 ml

Molarity= no of moles/ Volume

51.5×46×107= x × 1000

weight of C2H5OH = 27.7g

molality = 27.7/1000××46

m= 1.27m

to learn more about Molality click brainly.com/question/20380670

#SPJ9

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1 year ago
Cirrus clouds form at a
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H > 6,000
height greater than 6,000
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