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solmaris [256]
3 years ago
9

In a carbon dioxide molecule, a double covalent bond forms when the carbon atom shares what

Chemistry
1 answer:
Papessa [141]3 years ago
3 0

Answer:

2 pair of an electron

Explanation:

carbon having 6 valence electron 2 electron involved in covalent bonding so 4 electron means 2 pairs of an electron will left.

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Show the calculation of the mass (grams) of a 14.5 liter gas sample with a molecular weight of 82 when collected at 29°C and 740
mote1985 [20]

Answer:

In this conditions, the gaswll weight 46.74 g.

Explanation:

The idal gas law states that:

PV = nRT,

P: pressure = 740 mmHg = 0.97 atm

V: volume = 14.5 L

n: number of moles

R: gas constant =0.08205 L.atm/mol.K

T: temperature = 29°C = 302.15K

n = \frac{PV}{RT} \\n = \frac{0.97x14.5}{0.082 x 302.15 } \\n = 0.57 mol

1 mol gas ___ 82 g

0.57 mol gas __ x

x = 46.74 g

4 0
3 years ago
Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
Oksanka [162]

(P1V1/T1)=(P2V2/T2)

I just took the test and this should be correct

4 0
3 years ago
HELpPPPPppp!!!!!! will mark brainless
ANTONII [103]

Answer:

A

Explanation:

This is because in the graph shown line A has a quite greater impact of refraction than line B .

Hence, we can conclude that line A has the greater reaction at a faster rate.

6 0
3 years ago
Which of the following could be the subsh
andreev551 [17]

Answer:

2s^2 2p^2

Explanation:

Group 4A contains a total of 4 electrons for each atom in their valence shell. Filling the orbital diagram, let's say, for carbon, notice that when we start with period 2, we have two elements in the s-block, that is, lithium and beryllium. They correspond to the two s electrons that belong to the valence shell of carbon.

Moving on, we have boron and carbon, the remaining 2 electrons. Now, starting with boron, we're in the p-block.

That said, looking at the second period, the electron configuration for the valence shell of a group 4A element would be:

2s^2 2p^2

6 0
3 years ago
A student observes chloroplasts in the micrograph of a cell.
allochka39001 [22]

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I think it's fungus or plant cell

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2 years ago
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