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2 years ago

The dissolution of calcium chloride in water is given by the following equation:

Chemistry

1 answer:

never [62]2 years ago

8 0

Answer:

The reactants would appear at a higher energy state than the products.

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Complete the word equation for making a salt.

dalvyx [7]

Answer:

acid +alkaline =salt and water

Explanation:

if an acid reacts with an alkaline they form salt and water

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3 years ago

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A scientist observes how a particular South American bird cares for its young. Why is a field study an appropriate type of scien

mixer [17]

The best answer would be A. Hope i helped

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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 $2.54\ \text{mg/L}$ .

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3 years ago

What does the atomic weight (mass number) of an element represent? ____________________________ .

Lyrx [107]

Answer:

The atomic weight of an element represents the ratio of the average mass of atoms of a chemical element.

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2 years ago

What is the name of the molecule below?

Lostsunrise [7]

The name of the molecule above is <u>Ethene</u>

<h3>What are organic compounds?</h3>

Organic compounds can be defined as compounds containing carbon and hydrogen.

Some classes of organic compounds are:

Alkanes
Alkenes
Alkanols
Alkanals
Alkynes

So therefore, he name of the molecule above is Ethene

Learn more about organic compounds:

brainly.com/question/704297

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2 years ago