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Tanya [424]
2 years ago
11

Helium has greater density than air?

Chemistry
1 answer:
ki77a [65]2 years ago
7 0

Answer:

no less d

Explanation:

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The electronic configuration of an element is given below.
Shalnov [3]

Answer:

It is reactive because it has to gain an electron to have a full outermost energy level.

Explanation:

The electron configuration of oxygen is 1s2,2s2 2p4.

Oxygen is in group six in the periodic table so it has six electrons in its valence shell. This means that it needs to gain two electrons to obey the octet rule and have a full outer shell of electrons (eight).  

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2 years ago
What quantity measures the amount of space an object occupies?
RideAnS [48]
The correct one would be volume

8 0
3 years ago
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Find the new pressure of 5 L of a gas at STP that is cooled to 250 K and expanded to 6L
UNO [17]
I’m so sorry i have to do this 5L 24
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3 years ago
What determines which element an atom is?
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C) number of protons.
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The diameter of metal wire is often referred to by its American wire-gauge number. A 16 gauge-wire has a diameter of 0.05082 in.
lubasha [3.4K]

Answer:

length of wire = 38.82 m

Explanation:

∴ 16 gauge ≡ 0.05082 in * ( 2.54 cm/in ) = 0.12908 cm

∴ m spool = 1 Lb = 453.592 g

∴ ρ = 8.92 g/cm³

cross section area:

⇒ A = π*D²/4 = π*(0.12908)²/4 = 0.0131 cm²

⇒ L = ((453.592 g) *(cm³/8.92 g)) / ( 0.0131 cm² )

⇒ L = 3881.765 cm * ( m/100cm) = 38.82 m

8 0
3 years ago
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