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3 years ago

What is the difference between an element and a compound?

Chemistry

2 answers:

dsp733 years ago

8 0

D. Would be the correct answer :)

sashaice [31]3 years ago

6 0

D.
im not completely sure but i did the process of elimination. it’s not B because an element is one type of atom. it’s not A because both elements and compounds are pure substances. and it’s not C because it’s not in mixed composition

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I NEED HELP WITH #3 pleaseeee

Anit [1.1K]

Answer:

energy level

sub energy level

electrons in the orbital

Explanation:

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3 years ago

What type of reaction is represented by the following equation:

max2010maxim [7]

Answer:

Acid-base

Explanation:

KOH is a strong base, and NH₄Cl is an acid. They react to form a salt and water.

KOH + NH₄Cl ⟶ NH₃ + KCl + H₂O

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3 years ago

I have a 5 liter container of oxygen (O 2 ) gas at 2.0 atm and 25 0 C, what mass of gas is inside this

Thepotemich [5.8K]

Answer:

$m=13.1gO_2$

Explanation:

Hello,

In this case, by using the ideal gas equation, we first compute the moles of oxygen at the given volume, pressure and temperature:

$PV=nRT\\\\n=\frac{PV}{RT}=\frac{2.0atm*5L}{0.082\frac{atm*L}{mol*K}(25+273.15)K} =0.41mol$

Then, since molar mass of gaseous oxygen is 32 g/mol, we compute the contained mass in grams as shown below:

$m=0.41mol*\frac{32g}{1mol}\\\\m=13.1gO_2$

Best regards.

3 0

4 years ago

What happens to the concentration of a solution if you do each step.

ruslelena [56]

Answer:

1. Increases the concentration of the solvent in the solution.

2. Increases the concentration of the solute in the solution.

Explanation:

I'm not sure what would be number 3 answer

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3 years ago

F-orbital can accommodate maximum of... electron?

MAVERICK [17]

Explanation:

S= 2

P=6

D=10

F= 14

F orbital holds a maximum of 14 electrons

7 0

3 years ago

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