3 years ago

If a substance is not able to be separated by physical means but is able to be separated by chemical means, it is a(n)

1 answer:

4 0

A compound is a substance that consists of 2 or more elements chemically combined in a fixed proportion.

Compounds can be broken down ijt0 simple substances by chemical means but, elements cannot.

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4. Write a chemical formula for a compound that has two atoms of oxygen (0) and

Katyanochek1 [597]

The answer is Fe3O2 because there’s 2 oxygen and 3 iron

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3 years ago

A science teacher asked students to calculate the density of a toy block. The mass of the block was 110 grams and the volume of

Kipish [7]

Answer:

13.75

Explanation:

Density is equal to mass divided by volume. 110/8 = 13.75

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3 years ago

What information does a balanced equation provide?

MakcuM [25]

Answer:

It has to have a problem base and a realistic explanation.

Explanation:

It needs to have enough information for you to be able to come up with an answer and realistic explanation.

Hope I helped :)

6 0

2 years ago

Read 2 more answers

Write the electron configuration for a sodium cation with a charge of 1+

Dafna1 [17]

$1{s}^{2} 2 {s}^{2} 2 {p}^{6}$

or simply 2,8 it is isoelectronic with argon

4 0

3 years ago

You have 8 moles of a gas at 250 K in a 6 L container. What is the pressure of the gas? Show your work

Bogdan [553]

Hello:

In this case, we will use the Clapeyron equation:

P = ?

n = 8 moles

T = 250 K

R = 0.082 atm.L/mol.K

V = 6 L

Therefore:

P * V = n * R * T

P * 6 = 8 * 0.082* 250

P* 6 = 164

P = 164 / 6

P = 27.33 atm

Hope that helps!

7 0

3 years ago