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Masja [62]
2 years ago
5

What are some two interesting questions you have about constellations?

Chemistry
2 answers:
jok3333 [9.3K]2 years ago
5 0

Answer:

What are the 12 major constellations?

What is the largest constellation?

Explanation:

viva [34]2 years ago
4 0
What are constellations and what is it about?
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Answer:

Explanation:

NaCl does not contain molecules

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Suppose 550.mmol of electrons must be transported from one side of an electrochemical cell to another in 49.0 minutes. Calculate
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Answer:

18.0 Ampere is the size of electric current that must flow.

Explanation:

Moles of electron , n = 550 mmol = 0.550 mol

1 mmol = 0.001 mol

Number of electrons = N

N=N_A\times n

Charge on N electrons : Q

Q = N\times 1.602\times 10^{-19} C

Duration of time charge allowed to pass = T = 49.0 min = 49.0 × 60 seconds

1 min = 60 seconds

Size of current : I

I=\frac{Q}{T}=\frac{N\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}

=\frac{n\times N_A\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}

I=\frac{0.550 mol\times 6.022\times 10^{23} mol^{-1}\times 1.602\times 10^{-19} C}{49.0\times 60 seconds}=18.047 A\approx 18.0 A

18.0 Ampere is the size of electric current that must flow.

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3 years ago
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It would be nice if someone HELPED. During an experiment, you observe that two charged balloons repel each other. When you bring
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They are similarly charged, which is why they repel each other.

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Which of the following is an action-at-a-distance force? friction tension gravity air resistance
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Action-at-a-Distance Forces. Frictional Force. Gravitational Force. Tension Force ... The force of gravity on earth is always equal to the weight of the object as ... The friction force is the force exerted by a surface as an object moves across it or ... The force of air resistance is often observed to oppose the motion of an object.

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