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GarryVolchara [31]
3 years ago
14

Which formula represents an ionic compound?1) NO2) KCl3) HCl4) CO2

Chemistry
1 answer:
MissTica3 years ago
4 0

Answer:

its 3

Explanation:

i will do this some other time

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Predict (to 3 sig figs) the isochoric specific heat of gaseous SF6 (molar mass 146.06 g/mol) at 1200 K, assuming that at this te
bazaltina [42]

Explanation:

As it is known that SF_{6} molecule is a non-linear molecule. Therefore, its isochoric heat capacity will be as follows.

              C_{v} = \frac{3}{2}R + \frac{3}{2}R + (3 \times 7 - 6)R

                         = \frac{3}{2}R + \frac{3}{2}R + 15R

                         = 18 R

Also,    C_{V} = M \times C_{v}

where,     C_{V} = molar heat capacity

                    M = molecular mass

               C_{v} = specific heat

Hence, calculate the value of C_{v} as follows.

                 C_{V} = M \times C_{v}

               8 \times 8.314 \times 10^{7} = 146.06 \times C_{v}

               C_{v} = 10.2 \times 10^{6} erg. K^{-1}. gm^{-1}

This means that value of isochoric specific heat is 10.2 \times 10^{6} erg. K^{-1}. gm^{-1}.

Yes, we have to assume ideal gas behavior because for ideal gas:

                         dU = nC_{v}dT

Whereas for real gases "\frac{an^{2}}{V^{2}}" has to be added here.

5 0
3 years ago
Where are most of the metals found on the periodic table
sergeinik [125]

Answer:

Left

Explanation:

Metals are located on the left of the periodic table, and nonmetals are located on the upper right. They are separated by a diagonal band of semimetals.

3 0
3 years ago
PLS HELP *10 POINTS* I WILL GIVE BRAINLIEST
kykrilka [37]

Answer:

Eurkaryote... sorry if i wrong

Explanation:

8 0
3 years ago
What happens when an atom forms an ion?
Snowcat [4.5K]

Answer:

An is formed when an atom loses or gains one or more electrons. Because the number of electrons in an ion is different from the number of protons, an ion does have an overall electric charge.

Explanation:

4 0
3 years ago
Read 2 more answers
The molar heat of fusion for water is 6.01 kJ/mol. How much energy must be added to a 75.0-g block of ice at 0°C to change it to
andreyandreev [35.5K]
Answer is: 25,06 kJ of energy must be added to a 75 g block of ice.
ΔHfusion(H₂O) = 6,01 kJ/mol.
T(H₂O) = 0°C.
m(H₂O) = 75 g.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 75 g ÷ 18 g/mol.
n(H₂O) = 4,17 mol.
Q = ΔHfusion(H₂O) · n(H₂O)
Q = 6,01 kJ/mol · 4,17 mol
Q = 25,06 kJ.
7 0
3 years ago
Read 2 more answers
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