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Svet_ta [14]
3 years ago
6

I’m really confused can someone help me?

Chemistry
2 answers:
Nimfa-mama [501]3 years ago
8 0
The 2nd energy level can hold a maximum of 8 electrons.

Gre4nikov [31]3 years ago
5 0

Answer:

the second energy level can hold a maximum of eight electrons

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G.com what is the mass of a gold bar that is 7.379 × 10–4 m3 in volume
tiny-mole [99]
<span>7.379 * 10^(-4) is measured, hence prone to error, either human error or via measuring device. In this case,
100 cm = 1 m is written in stone and is unquestionable.
 The density of the gold is 19.3 g/cm^3 and could be an approximation.
 The approximation is good to at least one night.</span>
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3 years ago
Mineral oil dissolves in hexane but not in ethanol
chubhunter [2.5K]
That would be correct as stated.
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What’s the isotopic symbol for sodium
erastovalidia [21]
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3 years ago
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A SCUBA diver with a 4-liter lung capacity is at a depth of 135 feet (4 atm.) She ascends to the surface where the
Nostrana [21]

Answer:

16L

Explanation:

Data obtained from the question include:

V1 (initial volume) = 4L

P1 (initial pressure) = 4atm

P2 (final pressure) = 1atm

V2 (final volume) =?

Using Boyle's law equation P1V1 = P2V2, the new volume can be obtain as follow:

P1V1 = P2V2

4 x 4 = 1 x V2

16 = V2

V2 = 16L

Therefore, her new lungs volume is 16L

5 0
3 years ago
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Density is the amount of mass per unit volume. Calculate the density of an object that has a mass of 10 Kg and has a volume of 5
Gnoma [55]

Answer: 2 kg/L or 2 g/mL

Explanation:

litres are a cubic measure. “Cubic litres” is redundant at best, potentially confusing.

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2 years ago
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