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chubhunter [2.5K]
3 years ago
14

Each element possesses unique chemical and physical properties. a. True b. False

Chemistry
1 answer:
belka [17]3 years ago
4 0
A. True Because Each element is made up of unique type of atom that has very specific properties
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Dvinal [7]

Answer:

A magnet

Explanation:

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2 years ago
All organic compounds have at least ____ carbon and two ____
denpristay [2]
All organic compounds have at least 1 carbon and 2 hydrogen atoms.
7 0
3 years ago
The molar mass of H2O is 18.01 g/mol. The molar mass of O2 is 32.00 g/mol. What mass of H2O, ins grams, must react to produce 50
Ivan

Answer:

56.28 g

Explanation:

First change the grams of oxygen to moles.

(50.00 g)/(32.00 g/mol) = 1.5625 mol O₂

You have to use stoichiometry for the next part.  Looking at the equation, you can see that for every 2 moles of H₂O, 1 mole of O₂ is produced.  Convert from moles of O₂ to moles of H₂O using this relation.

(1.5625 mol O₂) × (2 mol H₂O/1 mol O₂) = 3.125 mol H₂O

Now convert moles of H₂O to grams.

(3.125 mol) × (18.01 g/mol) = 56.28125 g

Convert to significant figures.

56.28125 ≈ 56.28

5 0
3 years ago
2 Calculate What is the density of a liquid with a mass of 17.4g<br> and a volume of 20 mL?
jolli1 [7]

Answer:

P= 0.87g/mL or 0.87g/cm^3

Explanation:

P=m/v

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1mL=1cm^3

8 0
4 years ago
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Chemical bonds hold atoms together to form compounds through the sharing of electrons or the transferring of electrons. 
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