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kompoz [17]
3 years ago
11

Based on the periodic table, which of the following elements has properties most like neon’s?

Chemistry
2 answers:
Sonbull [250]3 years ago
7 0
D.krypton (Kr).............
ohaa [14]3 years ago
3 0

Answer:

<h2>D. Krypton (Kr)</h2>

<u>Explanation:</u>

because

Neon and Krypton, both are belongs to Inert or Noble gas Group

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Which defines the average kinetic energy of a system's particles?
ch4aika [34]
<h2>Answer:Temperature</h2>

Explanation:

Average kinetic energy of a system of particles is given by \frac{f}{2} kT.

where,

f is the number of degrees of freedom of the particles.

k is the boltzmann constant.

T is the temperature.

For general gases,

f=3

For a given degrees of freedom,average kinetic energy is directly proportional to temperature.

So,the average kinetic energy depends on temperature.

8 0
3 years ago
Read 2 more answers
What is the molarity of an HCl solution if 37.0 mL is completely titrated by 56.0 mL of an NaOH solution whose concentration is
Nata [24]

Answer:

Option A. 0.378M

Explanation:

Data obtained from the question include:

Molarity of acid (Ma) =..?

Volume of acid (Va) = 37.0 mL

Volume of base (Vb) = 56.0 mL

Molarity of base (Mb) = 0.250 M

Next, we shall write the balanced equation for the reaction. This is given below:

HCl + NaOH —> NaCl + H2O

From the balanced equation above,

The mole ratio of the acid (nA) = 1

The mole ratio of the base (nB) = 1

Finally, we can determine the molarity of the acid as shown below :

MaVa/MbVb = nA/nB

Ma x 37 / 0.25 x 56 = 1

Cross multiply

Ma x 37 = 0.25 x 56

Divide both side by 37

Ma = 0.25 x 56 /37

Ma = 0.378M

Therefore, the molarity of the acid, HCl is 0.378M

5 0
4 years ago
Read 2 more answers
What is the pOH of a 1 x 10^-8 M solution of HNO3?
Sedaia [141]

Explanation:

to find POH u need PH first

so ph=-log(h3o)

so

ph =  -  log(1 \times  {10}^{ - 8} )  \\  \\ ph = 8 \\ ph + poh =14 \\ poh = 14 - 8 \\ poh = 6

8 0
3 years ago
What is the basis of a metallic bond?
Luba_88 [7]
The attraction of metal ions for mobile electrons
5 0
3 years ago
Read 2 more answers
Calculate the number of C, H, and O atoms in 1.75 g of squaric acid
strojnjashka [21]
As far as I remember, the needed formula for squaric acid is C4H2O4.
According to this one mole should be  114.06 g., which means we have <span>0.015mol of this acid.
Then we can  easly calculate : </span><span>4(0.015) = 0.06 mol for both for Carbon and Oxygen and </span><span>0.03 mol of Hydrogen.
</span><span>To get more clear answer, we multiply by avogadros : 
</span><span>6.022 x 10^23. Hope everything is clear! regards</span>
4 0
3 years ago
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