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erastova [34]
3 years ago
13

What is density?????? any help anyone

Chemistry
2 answers:
Mazyrski [523]3 years ago
6 0

Answer:

Hello!

Explanation:

Density: The degree of compactness of a substance.

<em>happy to help!</em>

Taya2010 [7]3 years ago
4 0

Answer:

Density, mass of a unit volume of a material substance

Explanation:

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Which of these household items is powered by alternating current?
AlladinOne [14]

Answer:

C. Hair dryer

Explanation:

Alternating Current

The other kind of electricity is called alternating current, or AC. Power plants produce this

type of electricity. It is carried by large power lines from the plant to your home. When you

plug a TV, a lamp, or a hair dryer into the wall socket, you are using this type of electricity.  

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3 years ago
What mass of oxygen (O2) forms in a reaction that forms 15.90 g C6H12O6? (Molar mass of O2 = 32.00 g/mol; molar mass of C6H12O6
Dafna11 [192]

The answer is: the mass of oxygen is 16.95 grams.

The overall balanced photosynthesis reaction:  

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.  

m(C₆H₁₂O₆) = 15.90 g; mass of glucose.

n(C₆H₁₂O₆) = m(C₆H₁₂O₆) ÷ M(C₆H₁₂O₆).

n(C₆H₁₂O₆) = 15.9 g ÷ 180.18 g/mol.

n(C₆H₁₂O₆) = 0.088 mol; amount of glucose.

From chemical reaction: n(C₆H₁₂O₆) : n(O₂) = 1 : 6.

n(O₂) = 6 · 0.088 mol.

n(O₂) = 0.53 mol; amount of oxygen.

m(O₂) = 0.53 mol · 32.00 g/mol.

m(O₂) = 16.95 g; mass of oxygen.

5 0
3 years ago
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An object's mass is less on<br> the Moon than it is on Earth.
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Answer:

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Explanation:

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Answer:

Solid

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Liquid

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  • They move at medium speed

Gas

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<u><em></em></u>

Hope this helps :)

- jp524

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