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QveST [7]
3 years ago
13

There are 360 degrees in a circle. How many arcminutes will be in 86% of a circle?

Chemistry
1 answer:
Leokris [45]3 years ago
3 0

Answer:

There are 18572.9 arcminutes in 86% of a circle.

Explanation:

The degrees in 86% of a circle is:

degrees = \frac{86}{100}*360 = 309.6 ^{\circ}

Now, we need to find the number of arcminutes in 309.6°:

arcminute = \frac{59.99 arcminute}{1 degree}*309.6 degrees = 18572.9

Therefore, there are 18572.9 arcminutes in 86% of a circle.

I hope it helps you!

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A student pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. She
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It will go faster each time because she is stirring therefore the water can get to the salt faster than it just sitting at the top

Explanation:

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3 years ago
What is the conversion of 85.0kg
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85

Explanation:

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4 years ago
Which of the following happens when an ionic bond is formed? (1 point)
bazaltina [42]

This problem is asking for an explanation of what happens when an ionic bond is formed. Although the choices are not given in the question, one can find them on the attached file and realize the answer is C "a less electronegative atom donates an electron to a more electronegative atom" according to:

<h3>Types of bonds:</h3><h3 />

In chemistry, the forces that hold atoms together are known as chemical bonds and act like connections for atoms to form compounds. There exist ionic and covalent bonds, so the formers occur when electrons are thoroughly donated from the least electronegative atom to the most electronegative one.

On the flip side, covalent bonds occur when the electrons are shared between the two or more of the atoms forming the compound. In such a way, one can discard choices A and B because they are more related to covalent bonds.

Therefore, one can select C "a less electronegative atom donates an electron to a more electronegative atom" as the correct answer, because not all the elements are able to donate more than one single electron, and the less its valency, the more ionic the compound turns out to be.

Learn more about types of bonds: brainly.com/question/792566

3 0
3 years ago
If a reaction mixture contains only N2O and NO2 at partial pressures of 1.0 atm each, the reaction will be spontaneous until som
Vesna [10]

Answer:

Temperature required = 923K

Explanation:

The question is incomplete as there are some details that has to be given. details like the values of the standard enthalpies and entropies of the reactants and product as this is needed to calculate the actual value of the standard enthalpies and standard entropies of the reaction. I was able to get those values from literature and then calculated what needs to be calculated.

From there, I was able to use the equation that shows the relationship between, gibb's free energy, enthalpy, entropy and temperature. The necessary mathematical manipulation were done and the values were plugged in to get the temperature required to make the reaction spontaneous.

A few notes on the Gibb's free energy.

The Gibb's free energy also referred to as the gibb's function represented with letter G. it is the amount of useful work obtained from a system at constant temperature and pressure. The standard gibb's free energy on the other hand is a state function represented as Delta-G, as it depends on the initial and final states of the system.

The spontaneity of a reaction is explained by the standard gibb's free energy.

  • If Delta-G = -ve ( the reaction is spontaneous)
  • if Delta -G = +ve ( the reaction is non-spontaneous)
  • if Delta-G = 0 ( the reaction is at equilibrium)

The step by step calculations is done as shown in the attachment.

3 0
3 years ago
? + HCl -&gt; FeCl2 + ?<br> CaO + ? -&gt; Ca(NO3)2 + ?<br> ? + Cu(OH)2 -&gt; CuCl2 + ?
Oksana_A [137]

Answer:

1. Fe / H2

2. HNO3 / H2O

3. HCI / H2O

4 0
3 years ago
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