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Setler79 [48]
3 years ago
12

Which statement best compares potential and kinetic energy?

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
7 0

Answer:

The statement which best compares potential and kinetic energy is below:

Explanation:

Objects always have more kinetic energy than potential energy

iVinArrow [24]3 years ago
7 0

Answer:

d

Explanation:

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Which compound contains both ionic and covalent
musickatia [10]

Answer:

(3) NaNO₃

Step-by-step explanation:

Sodium nitrate has ionic bonds, because it consists of Na⁺ and NO₃⁻ ions.

However, the nitrate ions have <em>covalent bonds</em> between the O atoms and the central N atoms.

(1) and (2) are <em>wrong</em>. Both N₂O₅ and HCl consist of nonmetals, so they are <em>covalent</em> compounds.

(4) is <em>wrong</em>. NaCl has <em>only ionic bonds</em> between the Na⁺ and Cl⁻ ions

7 0
3 years ago
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if you find that a substance turns litmus paper to blue and contains hydroxide ions what would it most lightly be
Delicious77 [7]
Acid if I remeber correctly
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3 years ago
Which of the following series of isoelectronic ions (Mg²⁺, N³⁻, F⁻, Si⁴⁺) has the ionic radii in order of largest to smallest? A
Rom4ik [11]

Answer:

Option (d) is correct

N³⁻ > F⁻ > Mg²⁺ > Si⁴⁺

Explanation:

Total electrons for all the species = 10

So these are <u>iso electronic</u> with each other.

We know

Ionic radii ∝ \frac{Magnitude of Negative Charge}{Magnitude of Positive Charge}

  • Si⁴⁺ has 14 protons and 10 electrons
  • Mg²⁺ has 12 protons and 10 electrons
  • N³⁻ has 7 protons and 10 electrons
  • F⁻ has 9 protons and 10 electrons
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  • So Si⁺⁴ have smallest size and N³⁻ have largest in size
4 0
3 years ago
A 15.0-L vessel contains 0.50 mol CH4 with a pressure of 1.0 atm. After 0.50 mol C2H6 is added to the vessel, what is the partia
Kazeer [188]

The partial pressure of methane in the mixture of methane and ethane has been 1 atm.

Partial pressure has been the pressure exerted by a gas in the solution or mixture. The partial pressure of each gas has been the total pressure of the gaseous mixture.

The partial pressure of the gas has been dependent on the volume, temperature, and concentration of the gas.

The given methane has a partial pressure of 1 atm in the 15 L vessel. The addition of ethane results in the change in the total pressure of the mixture, as there have been additional moles of solute that contributes to the solution pressure.

However, since there has been no change in the concentration and volume of methane, the pressure exerted by methane has been the same. Thus, the partial pressure of methane has been 1 atm.

For more information about the partial pressure, refer to the link:

brainly.com/question/14623719

7 0
2 years ago
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The amino acids are combinations of
aalyn [17]

Answer:  The correct answer is:  [B]:

_________________________________________________

                         " organic acid and amines " .

_________________________________________________

<u>Note</u>:  Choice B:  "organic acid and amines" ;

            is the only answer choice that contains "amines" (hint: <u> amin</u><u>o acid</u> / <u>amin</u><u>e)</u> ;  which are "proteins" .

           As such;  Choice "B" is the <u><em>only</em></u>  correct answer choice.

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Hope this helps!

    Best wishes to you!

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5 0
3 years ago
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