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shusha [124]
3 years ago
6

Aluminum has the electronic configuration 2,8,3. How many valence

Chemistry
1 answer:
Klio2033 [76]3 years ago
6 0

Answer:

3 valence electrons

Explanation:

Because aluminum has three, that means three fluorines can bond. The make the formula AlF3, also known as aluminum trifluoride. Each of the fluorine atoms gets an electron to fill their shell, and the aluminum loses three, giving it a filled shell too (remember, aluminum has three extra electrons).

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What is the molecular formula of compound x?
givi [52]
Since there is one carbon with 4 Fluorines attached to it, and both compounds are no metals, we use the covalent method for naming,

Here we ignore the prefix for the first element if it is 1. Mono. Then pay attention to the second one, it would be tetra, because tetra means 4. Here there are 4 fluorines.

Drop ine and place ide

CF4 = carbon tetrafluoride.
4 0
3 years ago
Thermal energy only depends on the temperature of an object. true or false ?
Aleks [24]

This answer to the question is True

7 0
3 years ago
Select the correct answer.
Fittoniya [83]

Answer:

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7 0
3 years ago
The compound XCl4 contains 75.0% Cl by mass. What is the<br> element X?<br> nch of the following
krok68 [10]

The element X is titanium.

According to the question, the percentage by mass of Cl in XCl4  is 75.0%.

The percentage by mass is obtained from;

Mass of element in the compound/molar mass of compound * 100

Hence;

Let the mass of the unknown element be X

75 = 142/X + 142 * 100

75 (X + 142) = 142 * 100

75X + 10650 = 14200

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X = 14200 - 10650/75

X = 47

Hence, X is titanium.

Learn more; brainly.com/question/1363167

7 0
3 years ago
A sample of gas has a pressure of 1.8 atm and a volume of 2.5 L, what would be the pressure of this sample of gas if the volume
jek_recluse [69]
Boyle's Law
P1V1 = P2V2
1.8 atm * 2.5 L = P2 * 1.2 L
1.8 atm * 2.5 L / 1.2 L = P2
3.75 atm = P2
Using significant digits, the answer is 3.8 atm
3 0
3 years ago
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