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3 years ago

How would Mg change to gain a noble gas structure? lose 2 electrons gain 6 electrons

Chemistry

2 answers:

Gekata [30.6K]3 years ago

4 0

Are those the answers
hah because i got a little confused

Paladinen [302]3 years ago

4 0

Answer: Magnesium atom looses 2 electrons to obtain the noble gas structure.

Explanation:

Atomic number of magnesium is 12. Electronic configuration of magnesium :

$[Mg]=1s^22s^22p^63s^2$

In the periodic table, the nearest noble gas to magnesium element is Neon with atomic number 10.

$[Ne]=1s^22s^22p^6$

So, in order to obtain noble gas electronic configuration the magnesium atom will loose 2 electrons.

$[Mg^{2+}]=1s^22s^22p^6$

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Aloiza [94]

Answer:

P = 741.7 Pa

Explanation:

Pressure:

It is the force applied on object per unit area. The force is applied perpendicular to the surface.

Mathematical expression:

P = F/A

P = pressure

F = force

A = area

Given data:

Weight = 178 N

Area = 10 cm × 24 cm

Pressure = ?

Solution:

Area = 10 cm × 24 cm

Area = 240 cm²

Area = 240 /10000 = 0.024 m²

Formula:

P = F/A

P = 178 N / 0.024 m²

P = 741.7 Nm⁻²

Nm⁻² = Pa

P = 741.7 Pa

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3 years ago

When 3-methyl-3-pentanol is treated with chromic acid, Group of answer choices

san4es73 [151]

Answer: The orange color remains unchanged. (B)

Explanation:

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4 years ago

Read 2 more answers

When baking soda (sodium bicarbonate or sodium hydrogen carbonate, NaHCO3) is heated, it releases carbon dioxide gas, which is r

butalik [34]

Answer:

There is 78.25g NaHCO3 required

Explanation:

Step 1: Balance the equation

2 NaHCO3 → Na2CO3 + CO2 + H20

For 2 moles of NaHCO3 consumed, there is produced 1 mole of Na2CO3, 1 mole of CO2 and 1 mole of H2O.

Step 2: calculating moles of CO2

mass of Co2 = 20.5g

Molar mass of CO2 = 44.01 g/mole

moles of CO2 = 20.5 / 44.01 = 0.4658 moles

Step 3: Calculating moles of NaHCO3

Since we have for 1 mole CO2 produced, there is 2 moles of NaHCO3 consumed.

To calculate number of moles of NaHCO3, we have to multiply the number of moles of CO2, by 2.

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Step 4: Calculating the mass of NaHCO3

mass of NaHCO3 = moles of NaHCO3 x Molar mass of NaHCO3

mass = 0.9316 moles x 84g/ mole = 78.25g NaHCO3

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3 years ago

How can a substance stay at a certain temperature even though it is being heated?

SOVA2 [1]

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3 years ago

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balu736 [363]

Answer:

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Explanation:

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3 years ago