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german
3 years ago
13

What is 80 minus 20%​

Chemistry
2 answers:
Dvinal [7]3 years ago
7 0
79.8 ___________________\__\_
LekaFEV [45]3 years ago
3 0

Answer:

Explanation:

20% = 20/100 = 0.2

80 - 20%

= 80 - 0.2

= 79.8

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Typically if oxygen has a formal negative charge, it is participating in ____ covalent bond(s). Report your answer as a whole nu
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Oxygen is participating in non-polar covalent bond(s)

Oxygen forms 2 covalent bond.

This is because oxygen atoms have 6 valence electrons. This means that it has 2 lone pairs and 2 unpaired electrons that are shared in order to achieve octet configuration.

In this chemistry, the 2 lone pairs on the oxygen are not shared with any other atoms. Instead; they are assigned to the oxygen atom. The formal charge on the oxygen atom is zero. Oxygen's atomic number is 8 and is equal to the sum of the number of its valence and inner shell electrons.

<h3>What is non-polar covalent bonding?</h3>

Nonpolar covalent bonding is a kind of covalent bond in which the bonding electrons are shared equally between the two atoms.

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The pressure exerted on a sample of gas is 735 mm Hg with a volume of 375 mL and a temperature of 25 degrees Celsius. What would
Darina [25.2K]

Answer:

= 498.13 mmHg

Explanation:

Using the combined gas law;

P1V1/T1 =P2V2/T2

in this case; P1 = 725 mmHg, V1 = 375 mL and T1 = 25°C + 273 = 298 K

P2 = ?  V2 = 500 mL and T2 (standard temperature) = 0°C + 273 = 273 K

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3 years ago
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