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pashok25 [27]
3 years ago
7

Select the correct answer. Which property is typical of a covalent compound?

Chemistry
2 answers:
Norma-Jean [14]3 years ago
7 0
E - they exist only as gases and liquids
Vesnalui [34]3 years ago
3 0

Answer:

it is b

Explanation:

You might be interested in
Black coffee has a pH of around 5. Since pH and pOH have an inverse relationship, black coffee has a pOH of ___.
Anon25 [30]

Answer:

pOH = 9.

Explanation:

The inverse relationship between the pH and pOH of any given solution can be written as:

pH = 14 - pOH

Or conversely:

pOH = 14 - pH

With the above information in mind we can <u>use the given pH to calculate the pOH</u>:

pOH = 14 - pH

pOH = 14 - 5

pOH = 9

Thus, black coffee has a pOH of 9.

5 0
3 years ago
The entropy of a sample of CO2 increases as the CO2 changes from
andrew-mc [135]
The answer is (4) solid to gas. The entropy is the measurement of disorder. The entropy of CO2 under different status will increase from solid to liquid to gas. So the answer is (4).
8 0
3 years ago
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Potassium -39 has how many neutrons
enyata [817]
Potassium has 20 neutrons

Hope this helps
5 0
3 years ago
When Jorge looks at the Moon from Earth, he sees different phases of the Moon depending on the time of the month he observes the
eimsori [14]

Answer:

Because of the revolution of the moon about the earth.

Explanation:

The moon is the natural satellite of the earth; which rotates about its axes and orbits around the earth. As the moon orbits the earth with respect to time, it would complete a revolution in 27.3 days.

During revolution, different phases of the moon can be observed by someone on the earth. This is due to its location at different time during the process. Therefore, Jorge was able to see different phases of the moon because of its revolution about the earth.

5 0
2 years ago
When iron metal reacts with sulfuric acid, it produces iron (III) sulfate and hydrogen gas. Balance the equation: Fe + H2SO4 → F
mel-nik [20]
<h3>Answer:</h3>

2Fe(s) + 3H₂SO₄ → Fe₂(SO₄)₃ + 3H₂(g)

<h3>Explanation:</h3>

The equation for the reaction between iron metal and sulfuric acid is given by;

Fe(s) + H₂SO₄ → Fe₂(SO₄)₃ + H₂(g)

We are supposed to balance the equation:

What do we mean by balancing a chemical equation?

  • Balancing a chemical equations means that we want to make sure the number of atoms of each element is the same on both sides of the equation.

How is balancing done?

  • Balancing of chemical equations is try and error process that is done by putting appropriate coefficients on the reactants and products to equate the number of atoms of each element.

Why are subscripts on the compounds not changed?

  • Subscripts in a compound show the actual number of atoms of each element in the compound and therefore can never be altered with because it will distort the chemical compound.

Why is it necessary to balance chemical equations?

  • Chemical equations are balanced for them to obey the law of conservation of mass.
  • According to this law, the mass of the reactants should be equal to the mass of products, which is achieved through balancing an equation.

What is the required balanced equation?

  • The equation given can be balanced by putting the coefficients 2, 3, 1, 3 in that order on the reactants and products.
  • Therefore, the balanced chemical equation is;

2Fe(s) + 3H₂SO₄ → Fe₂(SO₄)₃ + 3H₂(g)

6 0
3 years ago
Read 2 more answers
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