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Art [367]
3 years ago
12

The density of NO2 in a 4.50 L tank at 760.0 torr and 25.0 °C is ________ g/l.

Chemistry
1 answer:
Sonbull [250]3 years ago
4 0

The answer is c-1.68

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“Representative elements”? Which groups of the periodic table contain the “representative elements”?
Phoenix [80]

S- and P-Block elements are known as Representative elements.

Groups 1-2 and Groups 13-18

4 0
3 years ago
Write a short explanation about the “cheater” way to find the # of valence electrons an element has, and explain what valence el
skelet666 [1.2K]
I don’t know what the “cheater” way is, however you can easily judge how many valence electrons an element has by looking at its group number on the periodic table.

Bonding in chemistry is completely and totally due to electrons. Every element wants 8 electrons in its outer shell in order to be stable. This is what we call the “Octet Rule”.
8 0
3 years ago
Define the term valence electron and explain how to find the number of valence electrons in family one and family 2.
goblinko [34]
Valence Electron is the outermost electrons, family(Alkali) 1 has 1 valence electrons and family(Alkaline) 2 has 2 valence electrons.

Hope this helps
8 0
3 years ago
12. Chubchub runs a 440m lap in 1.2 minutes. How many laps will Chubchub
Svet_ta [14]

Answer:

the  number of laps in the case when he run for 50 minutes is 18,333.33

Explanation:

The computation of the number of laps in the case when he run for 50 minutes is shown below:

Given that

He runs 440m lap in 1.2 minutes

So in 50 minutes he can have laps of

= 440 × 50 ÷ 1.2

= 18,333.33 laps

hence, the  number of laps in the case when he run for 50 minutes is 18,333.33

3 0
3 years ago
What is the total number of protons, neutrons, and electrons in a cadmium, Cd, atom that has a mass number of 112?
Triss [41]

Answer:

Number of Protons 48

Number of Neutrons 64

Number of Electrons 48

Explanation:

The mass number of an atom is the sum of the number of protons and neutrons in the nucleus of that atom

6 0
3 years ago
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