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3 years ago

How does air pressure affect the boiling point of a liquid?

Chemistry

2 answers:

AVprozaik [17]3 years ago

6 0

Answer:

This is the answer please mark me the brainlest

Hope this may helps you

answer is D

Agata [3.3K]3 years ago

3 0

Answer:

D. Air pressure lowers the temperature of the liquid molecules.

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What is a property of a combustion reaction?

ohaa [14]

A, O2 has to be a reactant for combustion to burn

8 0

3 years ago

What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?

grin007 [14]

Answer:

Brackett Series (n = 4)

Explanation:

The least energetic line of Hydrogen atom lies in Brackett Series when n = 4 because these are least energetic, have longer wavelengths and lies in Infrared region of spectrum. No traces of Pfund series are formed by H=atoms.

8 0

3 years ago

A city continuously disposes of effluent from a wastewater treatment plant into a river. The minimum flow in the river is 130 m3

Vera_Pavlovna [14]

Answer:

$2.54\ \text{mg/L}$

Explanation:

C = Allowable concentration = 1.1 mg/L

$Q_1$ = Flow rate of river = $130\ \text{m}^/\text{s}$

$Q_2$ = Discharge from plant = $37\ \text{m}^3/\text{s}$

$C_1$ = Background concentration = 0.69 mg/L

$C_2$ = Maximum concentration that of the pollutant

The concentration of the mixture will be

$C=\dfrac{Q_1C_1+Q_2C_2}{Q_1+Q_2}\\\Rightarrow C_2=\dfrac{C(Q_1+Q_2)-Q_1C_1}{Q_2}\\\Rightarrow C_2=\dfrac{1.1(130+37)-130\times 0.69}{37}\\\Rightarrow C_2=2.54\ \text{mg/L}$

The maximum concentration that of the pollutant (in mg/L) that can be safely discharged from the wastewater treatment plant is $2.54\ \text{mg/L}$ .

6 0

2 years ago

What it the oxidation number for cl? A. -2 B. +2 C. -1 D. +1

brilliants [131]

Answer:

Explanation:

it is c.-1 because oxidation number of cl is-1

5 0

3 years ago

Assuming the compound is dissolved in water, what is the formula for phosphorous acid? h3p h3po4 hp h3po3

Sidana [21]

I think the correct answer from the choices listed above is the last option. The formula for phosphorous acid is H3PO3. It also called orthophosphorous acid, one of several oxygen acids of phosphorus, used as reducing agent in chemical analysis. Hope this answers the question.

4 0

3 years ago

Read 2 more answers