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solniwko [45]
3 years ago
15

How many electrons are found in their outer shell ?

Chemistry
1 answer:
dezoksy [38]3 years ago
3 0

The answer is eight electrons.

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What happens when you continue to add a solute to an already saturated solution
dlinn [17]

Answer: nothing. It remains undissolved

Explanation: saturated = dissolved as much solute as solvent can contain

3 0
3 years ago
The smaller radius is primarily a result of the magnesium atom having ??
Aleksandr [31]

Answer:

A larger nuclear charge :)

Explanation:

8 0
3 years ago
A gas has a volume of 300 mL in a rigid container at 50oC and 1.75 atm. What will be its pressure at 100K?
eduard

Answer:

Its pressure will be 0.54 atm at 100 K.

Explanation:

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

Gay-Lussac's law can be expressed mathematically as the quotient between pressure and temperature equal to a constant:

\frac{P}{T} =k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

\frac{P1}{T1} =\frac{P2}{T2}

In this case:

  • P1= 1.75 atm
  • T1= 50 °C= 323 K (being 0 C=273 K)
  • P2= ?
  • T2= 100 K

Replacing:

\frac{1.75 atm}{323 K} =\frac{P2}{100 K}

Solving:

P2= 100 k*\frac{1.75 atm}{323 K}

P2= 0.54 atm

<u><em>Its pressure will be 0.54 atm at 100 K.</em></u>

8 0
3 years ago
An iron nail rusts when exposed to oxygen. According to the following reaction, how many moles of iron(III) oxide will be formed
Zigmanuir [339]

Answer:

0.453 moles

Explanation:

The balanced equation for the reaction is:

2Fe(s) + 3O2(g)  ==>  2Fe2O3

From the equation,  mass of O2 involved = 16 x 2 x 3 = 96g

                                 mass of Fe2O3 involved = [(2x26) + 3 x 16] x 2

                                                                            = 100g

                Therefore 96g of O2 produced 100g of Fe2O3

                                  32.2g of O2 Will produce   100x32.2/96

                                                   = 33.54g of Fe2O3

Converting it to mole using   number of mole = mass/molar mass

but molar mass of Fe2O3 = 26 + (16 X 3)

                                           = 74g/mole

Therefore number of mole of 33.54g of Fe2O3 = 33.54/74

                                                                           = 0.453 moles

5 0
3 years ago
HELPPP!! i need help with this fasttt
Jet001 [13]

Answer:

c

Explanation:

8 0
3 years ago
Read 2 more answers
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