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3 years ago

Convection is the up and down movement of what?

Chemistry

1 answer:

Fynjy0 [20]3 years ago

3 0

Convection is the up and down movement of heat. Usually air, but convection also occurs in the ocean.

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3 years ago

Using the periodic table as a reference, which elements could bond to form a compound most like NaCl?

pychu [463]

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Na(sodium)=2.8.1

Cl (Chlorine)=2.8.7. sodium will give the chlorine the 1 valence electron to become stable ions.

answer

pottasium. (2.8.8.1) and Flourine(2.7)

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3 years ago

553.5 mL ?:cm^3 how do i get my answer? and what is the answer?

dmitriy555 [2]

Answer:

553.5 cm3

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3 years ago

What is the Formula for iron metal.

son4ous [18]

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3 years ago

Read 2 more answers

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

3 years ago