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zimovet [89]
2 years ago
6

Howmany mols are in 151 g of dinitrogen monoxide? ​

Chemistry
1 answer:
oksano4ka [1.4K]2 years ago
8 0

Answer:

3.43 moles

Explanation:

To convert moles into grams you must take the number of grams and divide it by the atomic mass of the compound.

in this case, grams is 151 and N2O has an atomic mass of 44.013

so your equation would look like

151/44.013=3.430804535

your answer would be 3.43 moles

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Shtirlitz [24]

Answer:

Correct choice are C and D (they are both, the same).

Explanation:

Cathode is the positive(+) electrode where a reduction occurs.

Reduction is the chemical reaction where the oxidation state is reduced.

2Ag(s) + 1/2 O2(g) + 2H+(aq) → 2Ag+(aq) + H2O (l)

A. 2H2O (l) → O2 (g) + 4H+ (aq) + 4e-

B. 2Ag (s) → 2Ag+ (aq) + 2e-

C. 1/2 O2 (g) + 2H+ (aq) + 2e- → H2O (l)

D. 1/2 O2 (g) + 2H+ (aq) + 2e- → H2O (l)

C or D, are ok. They are the same equation.

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3 0
3 years ago
The Earth's mantle is
EleoNora [17]

Answer:

C. cooler than both the crust and the core

Explanation:

It is observed that at the mantle, temperatures range from estimatedly 200 °C (392 °F) around the upper boundary with the crust to approximately 4,000 °C (7,230 °F) at the core-mantle boundary.

So we can say the mantle is cooler than both the crust and the core.

5 0
3 years ago
Isotopes Mg-24,Mg-25 and Mg-26 has natural abundance of 79.0%,10.0% and 11.0%. Calculate the relative atomic mass for isotopes M
Anastasy [175]
79% of Mg-24
10% of Mg-25
11% of Mg-26

18.96 + 2.5 + 2.86 = 24.32u
6 0
3 years ago
What is the reason atoms share electrons
kondaur [170]

Answer:

The atoms of some elements share electrons because this gives them a full valence shell just like the nobal gases GOOD LESSONS ♡

5 0
3 years ago
Hello! Can you please help me do this question? I have to pick two but I’m not really sure what to pick..
In-s [12.5K]

Answer:

B and D

Explanation:

it is B and D because in no gravity  if you change the size of the ball it does not change anything. and if you swing fast it does not change anything but the speed. if you change the angle it is just the same modle but different angle

7 0
3 years ago
Read 2 more answers
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