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Klio2033 [76]
3 years ago
13

Which of the following is possible for aluminum to have a full outer shell? Question 13 options: Three electrons are gained, cre

ating Al+3. Three electrons are lost, creating Al+3. Three electrons are gained, creating Al-3. Three electrons are lost, creating Al-3.
Chemistry
2 answers:
Fiesta28 [93]3 years ago
5 0

The correct answer is three electrons are lost

Harlamova29_29 [7]3 years ago
3 0
The answer should be “Three electrons are lost, creating Al+3”. Al‘s electron configuration is 1s2 2s2 2p6 3s2 3p1, and by losing 3 electrons its second shell becomes the full outer one.
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Find the number of cations present in 7g of sodium prosphate Na=23 g/mol O=16g/mol P=31g/mol​
Snowcat [4.5K]

Answer:    This contains magnesium, Mg2+, and hydroxide, OH–

, ions. Each magnesium ion is +2 and

each hydroxide ion is -1: two -1 ions are needed for one +2 ion, and the formula for magnesium

hydroxide is Mg(OH)2. The (OH)2 indicates there are two OH–

ions. In a formula unit of

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oxygen, and two hydrogen atoms. The subscript multiplies everything in ( )

hope that helped!!

3 0
3 years ago
Which of these is the smallest volume 500mL, 2,500 cm3, 5.5•10-1, 25 m3
mezya [45]
25m³.
500mL = 500cm³
25m³ = 2,500cm³
5.5x9 = 49.5(cm³)
25m³ is the smallest among the others.
5 0
3 years ago
If 1.20 moles of an ideal gas occupy a volume of 18.2 l at a pressure of 1.80 atm, what is the temperature of the gas, in degree
scoundrel [369]

We can calculate for temperature by assuming the equation for ideal gas law:

P V = n R T

Where,

P = pressure = 1.80 atm

V = volume = 18.2 L

n = number of moles = 1.20 moles

R = gas constant = 0.08205746 L atm / mol K

Substituting to the given equation:

T = P V / n R

T = (1.8 atm * 18.2 L) / (1.2 moles * 0.08205746 L atm / mol K)

T = 332.70 K

We can convert K unit to ˚C unit by subtracting 273.15 to Kelvin, therefore

T = 59.55 ˚<span>C</span>

6 0
3 years ago
How would the world be different if people were not aware of radioactive decay
allsm [11]

Answer:

everyone would die

Explanation:

if we did not know about it we would not do anything about it

6 0
3 years ago
What is the chemical name for 1 nitrogen atom,<br> 2 hydrogen atom?
sasho [114]

NH3 has 1 Nitrogen atom and 3 hydrogen atoms.

5 0
3 years ago
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