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2 years ago

Which photographs show an object in orbit? Explain your answer.

Chemistry

2 answers:

daser333 [38]2 years ago

5 0

Answer:

the 3rd image

Explanation:

it is the 3rd image bcuz the third image shows an object or a body moving around a particular body of object

baherus [9]2 years ago

3 0

Last picture, because that ring explains something orbiting it.

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Explain the difference between an organic and inorganic compound.

galben [10]

The most common differentiation to help distinguish between organic and inorganic compounds used to be the fact that organic compounds result from the activity of living beings, whereas inorganic compounds are either the result of natural processes unrelated to any life form or the result of human experimentation in the laboratory.

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3 years ago

Read 2 more answers

1. What is the new volume of a sample of neon if 5.23 L of the gas, which was originally at 214 mmHg, is compressed until the pr

bulgar [2K]

Here are attached photos, I don’t think they ar links, lmk if they don’t work

in the answering section it didn’t show me the full question so I only saw a little of question 5. Hopefully you get the idea of how to identify which equations to use tho! Good luck!

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3 years ago

(a) 2, 8, 8, 2 (b) 2, 8, 8 (c) 2, 8, 8, 4 (d) 2, 8, 8, 6

valentina_108 [34]

Answer:

I think my answer is

c) 2, 8, 8, 4

4 0

2 years ago

Any process with a negative change in enthalpy and a positive change in entropy will be:_______.

harkovskaia [24]

Answer:

a. spontaneous

Explanation:

Hello,

In this case, since the Gibbs free energy is a metric that allows us to know whether a chemical reaction is spontaneous (Gibbs free energy less than 0) or nonspontaneous (Gibbs free energy greater than 0) we can mathematically define it as:

$\Delta G=\Delta H-T\Delta S$

Thus, if the enthalpy is negative and the entropy is negative, the subtraction become always negative, for which the Gibbs free energy is negative as well, therefore, based on the aforementioned, any process with a negative change in enthalpy and a positive change in entropy will be: a. spontaneous.

Best regards.

5 0

2 years ago

In an experiment, a compound was determined to contain 68.94% oxygen and 31.06% of an unknown element by weight. The molecular w

monitta

Answer is: the compound is B₂O₃.

ω(O) = 68.94% ÷ 100%.

ω(O) = 0.6894; percentage of oxygen in the compound.

ω(X) = 31.06% ÷ 100%.

ω(X) = 0.3106; percentage of unknown element in the compound.

If we take 69.7 grams of the compound:

M(compound) = 69.7 g/mol.

n(compound) = 69.7 g ÷ 69.7 g/mol.

n(compound) = 1 mol.

n(O) = (69.7 g · 0.6894) ÷ 16 g/mol.

n(O) = 3 mol.

M(compound) = n(O) · M(O) + n(X) · M(X).

n(X) = 1 mol ⇒ M(X) = 21.7 g/mol; there is no element with this molecular weight.

n(X) = 2 mol ⇒ M(X) = 10.85 g/mol; this element is boron (B).

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2 years ago