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Zina [86]
3 years ago
5

What is the difference between a compound and a molecule?

Chemistry
2 answers:
Sergio [31]3 years ago
8 0
A molecule is formed when two or more atoms joined together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules. Hope I helped
atroni [7]3 years ago
8 0
A molecule is formed when two atoms join together chemically. A compound is a molecule that contains at least different elements
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A container holds a pure sample of a radioactive substance with a half-life of 2 hours. Which of the following statements are tr
rodikova [14]

C, because a half-life is the amount of time it takes for half the atoms to decay.

5 0
4 years ago
Use the ideal gas law to calculate the pressure in atmospheres of 0.21 mol of helium (He) at 16°C & occupying 2.53 L. You mu
chubhunter [2.5K]

Answer:

The answer to your question is 2.32 atm

Explanation:

Data

P = ?

n = 0.214

V = 2.53 L

T = 61°C

R = 0.082 atm L/mol°K

Formula

PV = nTR

solve for P

P = nRT/V

Process

1.- Calculate the temperature in K

°K = °C + 273

°K = 61 + 273

    = 334

2.- Substitution

P = (0.214 x 0.082 x 334) / 2.53

3.- Simplification

P = 5.86/2.53

4.- Result

P = 2.32 atm

4 0
3 years ago
What’s the formula equation for
jeyben [28]
If you have a magnesium for every oxygen, then you have to start with two magnesiums. So the balanced equation is 2 Mg + O2 2 MgO.

And

CaCO3———→CaO + CO2

I hope it helped!

7 0
3 years ago
Read 2 more answers
Help with questions
gulaghasi [49]

1) This type of energy transfer is called conduction.

2) Hydroelectricity

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4 years ago
What type of plate boundary causes a subduction zone?
Elenna [48]
The oceanic plate boundary :)
8 0
3 years ago
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