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3 years ago

Consider the model of a sodium atom.

Chemistry

2 answers:

Julli [10]3 years ago

8 0

The Answer Is C......

Otrada [13]3 years ago

6 0

Answer : Option C) The distribution of electrons in different shells.

Explanation : According to the attached image, the model of the sodium atom represents that the sodium atom has 12 neutrons and 11 protons in its nucleus. Also, there are 11 electrons which are distributed in different shells. The first shell contains 2 electrons, second has 8 electrons whereas third shell has only one electron it. Which defines the valency of the sodium, as 1. As it donates it's last electron to achieve an octet state.

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Answer:

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Explanation:

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3 years ago

A gas is initially at a pressure of 4.7 atm and a volume of 7.5 L. When the volume is increased to 10.5 L, what is the new press

Roman55 [17]

Answer:

P2=3.36 atm

Explanation:

P1×V1=P2×V2

P1×V1÷V2=P2×V2÷V2

P2=4.7×7.5÷10.5

P2=3.36 atm

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3 years ago

Describe two ways you could model atoms in a substance.

ziro4ka [17]

Answer:

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3 years ago

A sample of ammonia is found to occupy 0.250 L under laboratory conditions of 27 °C and 0.850 atm. Find the volume of this sampl

Rzqust [24]

Answer:

0.193 L

Explanation:

Step 1:

Data obtained from the question.

Initial Volume (V1) = 0.250 L

Initial temperature (T1) = 27°C

Initial pressure (P1) = 0.850 atm

Final volume (V2) =?

Final temperature (T2) = 0°C

Final pressure (P2) = 1.00 atm

Step 2:

Conversion of celsius temperature to Kelvin temperature.

Temperature (Kelvin) = temperature (celsius) + 273

Initial temperature (T1) = 27°C = 27°C + 273 = 300K

Final temperature (T2) = 0°C = 0°C + 273 = 273K

Step 3:

Determination of the new volume of the sample of ammonia gas.

The new volume can be obtain by using the general gas equation as shown below:

P1V1/T1 = P2V2/T2

0.850x0.250/300 = 1xV2/273

Cross multiply to express in linear form

300 x V2 = 0.850x0.250x273

Divide both side by 300

V2 = (0.850x0.250x273) /300

V2 = 0.193 L

Therefore, the volume of the sample at 0 °C and 1.00 atm is 0.193 L

6 0

3 years ago

Aqueous solutions of silver nitrate (AgNO3) and iron(III) chloride (FeCl3) are mixed together. Which ion combines with the chlor

garik1379 [7]

Hello there!

The correct answer is Ag⁺.

If we look at the solubility rules, it says that most chlorides are soluble, except with Ag⁺, and Pb²⁺.

I hope this helps!
Brady

6 0

3 years ago

Read 2 more answers