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beks73 [17]
3 years ago
8

Please I really need help with this

Chemistry
2 answers:
sesenic [268]3 years ago
5 0

Answer:

B. It is used to open and close the circuit.

Ksju [112]3 years ago
3 0

Answer:

B. it is used to open and close the circuit

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What happens when sodium and sulfur combine
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It emits hydrogen sulfide...smells like rotten eggs..

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3 years ago
What volume will 1,27 moles of helium gas occupy at 63°C and 75.2 kPa?
Oksi-84 [34.3K]

Answer:

47.34L

Explanation:

Using the general gas equation as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

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T = temperature (K)

According to the information provided in this question,

V = ?

P = 75.2 kPa = 75.2 × 0.00987 = 0.74atm

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Using PV = nRT

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8 0
2 years ago
The partial charges in this water molecule occur because of _____.
Step2247 [10]
The answer will be because of the unequal sharing of electrons between the hydrogen and the oxygen atoms of a water molecule.

Hope this helps.

I'd appreciate brainliest answer from u please.
5 0
3 years ago
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