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Ostrovityanka [42]
3 years ago
12

What is the transfer of heat by direct contact - occurs when the particles in a material collide with neighboring particles?

Chemistry
1 answer:
nignag [31]3 years ago
8 0

Answer:

Conduction

Explanation:

<h2>Hope I helped you:)</h2>
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Which of the following is a true statement?
maria [59]

Answer:

the second one seems right :)

Explanation:

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3 years ago
Please help!!<br><br> What colors do acids and bases turn litmus paper?
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acid turns blue litmus red and base turns red litmus blue

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Ion<br> If we add an electron to a stable element we call it a(n)_____ion<br><br> anion<br> cation
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The answer is a cation, I may be wrong but cation is plus and anion is subtract
3 0
2 years ago
A section of the periodic table is shown below: A portion of two rows of the periodic table is shown. The first row reads two he
cluponka [151]

 The statement  which is true  is

Fluorine  is more reactive  than nitrogen because fluorine  needs  only  one electron to fill  its  outermost  shell.


     <u><em>Explanation</em></u>

Fluorine  has  electron configuration  of 1S²2S²2P⁵  while nitrogen  has 1S²2S²2P³  electron configuration.

The 2P sub shell  for nitrogen   is  half filled  therefore it is sable  than fluorine.

since  p orbital  can hold a maximum  of  6  electrons ,Fluorine  requires  1 electron  to  completely fill  it's 2P  sub shell  which make it    more  reactive than nitrogen.



7 0
3 years ago
At a given temperature, the elementary reaction A ---&gt;B in the forward direction is first order in A with a rate constant of
Pani-rosa [81]

Answer:

The value of the equilibrium constant for the reaction A ⇒ B is Kc = 1.72 × 10³.

The value of the equilibrium constant for the reaction B ⇒ A is K'c = 5.81 × 10⁻⁴.

Explanation:

For the reaction A ⇒ B, the equilibrium constant (Kc) is equal to the forward rate constant (kf) divided by the reverse rate constant (ki).

Kc=\frac{kf}{ki} =\frac{1.60 \times 10^{2} s^{-1}   }{ 9.30 \times 10^{-2} s^{-1}} =1.72 \times 10^{3}

If we consider the inverse reaction B ⇒ A, its equilibrium constant (K'c) is the inverse of the forward reaction equilibrium constant.

K'c=\frac{1}{Kc} =\frac{1}{1.72 \times 10^{3}  } =5.81 \times 10^{-4}

4 0
3 years ago
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