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Drupady [299]
3 years ago
5

What is the oxidation state of nitrogen in N2? O A. +5 O B.-3 O C. +3 O D.O

Chemistry
1 answer:
stepladder [879]3 years ago
5 0

Answer:

D) 0 (zero)

Explanation:

There's a rule that neutral compounds (compound) without charges have oxidation of zero. Also, another formula that if two atoms of the same element make one single molecules such as diatomics molecules are O2, N2, I2, Br2 oxidation states are zero, thus here N is 0 (Zero) as well.

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Choose a body system and write about what kind of music it would listen to. write 2 sentences for full credit.
Mariulka [41]

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nonmusical tones and is connected to many different areas of the brain. Learning music

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8 0
3 years ago
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A mixture contains only NaCl and Al2(SO4)3. A 1.45-g sample of the mixture is dissolved in water, and an ex- cess of NaOH is add
chubhunter [2.5K]

Answer:

The mass percent of aluminum sulfate in the sample is 16.18%.

Explanation:

Mass of the sample = 1.45 g

Al_2SO_3+6NaOH\rightarrow 2Al(OH)_3+3Na_2SO_4

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Moles of aluminum hydroxide = \frac{0.107 g}{78 g/mol}=0.001372 mol

According to reaction, 2 moles of aluminum hydroxide is obtained from 1 mole of aluminum sulfate .

Then 0.001372 moles of aluminum hydroxide will be obtained from:

\frac{1}{2}\times 0.001372 mol=0.000686 mol

Mass of 0.000686 moles of aluminum sulfate :

= 0.000686 mol × 342 g/mol = 0.2346 g

The mass percent of aluminum sulfate in the sample:

=\frac{ 0.2346 g}{1.45g}\times 100=16.18\%

5 0
3 years ago
How does distance affect the strength of the force of gravity
Otrada [13]
<span>The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases. you can look it up in Google</span>
3 0
3 years ago
Match the Terms to their definition:
olganol [36]
1. B
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3. G
4. I
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3 0
3 years ago
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Kathleen makes iced coffee by adding ice to her room temperature coffee in a glass. What statement explains what is taking place
Ganezh [65]

Answer:

The answer is the heat is transferred from the ice to the coffee.

Explanation:

Hot molecules tend to transfer to colder molcules, which causes the ice to melt and makes the coffee colder.

Hope this helps! :)

3 0
2 years ago
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