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yulyashka [42]
3 years ago
5

Who's model looked similar to a billiard ball?

Chemistry
2 answers:
timama [110]3 years ago
8 0
I need a picture theirs no way to answer that
riadik2000 [5.3K]3 years ago
4 0

Answer:

I need to see a picture

Explanation:

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How many atoms are in 2.56 g of Si?
Gala2k [10]

Answer:

Answer in the attached file

6 0
3 years ago
A mixture of He He , N 2 N2 , and Ar Ar has a pressure of 24.1 24.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 301
Karo-lina-s [1.5K]

Answer:

16.5 atm

Explanation:

<em>A mixture of He, N₂, and Ar has a pressure of 24.1 atm at 28.0 °C. If the partial pressure of He is 3013 torr and that of Ar is 2737 mm Hg, what is the partial pressure of N₂?</em>

The total pressure of a gaseous mixture is equal to the sum of the partial pressures.

P = pHe + pN₂ + pAr

pN₂ = P - pHe - pAr [1]

We need to express pHe and pAr in atm.

pHe=3013torr.\frac{1atm}{760torr} =3.96atm

pAr=2737mmHg.\frac{1atm}{760mmHg} =3.60atm

From [1],

pN₂ = 24.1 atm - 3.96 atm - 3.60 atm = 16.5 atm

8 0
3 years ago
Hello! May I please get some help here? :) Giving brainliest
Korvikt [17]

Answer:

no no no......

Explanation:

no no no......

7 0
2 years ago
Read 3 more answers
Balance the following chemical equation I would give anyone the brainiest for answering.
serg [7]

<u>Answer :</u>

Part 13:

The balanced chemical reaction will be:

Cu(NO_3)_2+Na_2SO_4\rightarrow CuSO_4+2NaNO_3

Part 14:

The balanced chemical reaction will be:

Cu(NO_3)_2+Na_2C_2O_4\rightarrow CuC_2O_4+2NaNO_3

Part 15:

The balanced chemical reaction will be:

Cu(NO_3)_2+2KOH\rightarrow Cu(OH)_2+2KNO_3

<u>Explanation :</u>

Balanced chemical reaction : It is defined as the reaction in which an individual element of an atom present on reactant side must be equal to product side.

Part 13:

The balanced chemical reaction will be:

Cu(NO_3)_2+Na_2SO_4\rightarrow CuSO_4+2NaNO_3

Part 14:

The balanced chemical reaction will be:

Cu(NO_3)_2+Na_2C_2O_4\rightarrow CuC_2O_4+2NaNO_3

Part 15:

The balanced chemical reaction will be:

Cu(NO_3)_2+2KOH\rightarrow Cu(OH)_2+2KNO_3

5 0
3 years ago
What is the formula for the ionic compound formed between sodium and oxygen?
CaHeK987 [17]

Answer:The formula for the compound formed between sodium and oxygen will be Na2O; a ratio of 2 Na atoms for each O atom.

Explanation:

8 0
2 years ago
Read 2 more answers
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