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Vladimir [108]
2 years ago
10

Given that the density of air is 14.4, then the vapour of sulphur IV oxide is A. 16 B. 32 C. 64 D. 128

Chemistry
1 answer:
Arisa [49]2 years ago
6 0

Answer:

32

Explanation:

The vapour density of a gas is the number of times a given volume of gas or vapour is as heavy as the same volume of hydrogen at a particular temperature and pressure.

Vapour density = 2 × relative molecular mass of the gas or vapour

Relative molecular mass of SO2 = 32 + 2(16) = 64

Hence;

Vapour density of SO2 = 64/2

Vapour density of SO2 = 32

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3 years ago
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This means two atoms can have the same number of protons and neutrons, but a different number of electrons, which would make the atom be charged negatively or positively.

Based on this, if there are two atoms, each with 6 protons but one of these is negatively charged it is because the second atom has 1 or more extra.

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Negatively-charged atom:

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8 0
2 years ago
Which statement about the alkali metals is correct?
icang [17]

Answer:

Sofia the firstttdbshsgshaksus

5 0
2 years ago
7. How much ice is left over if 46 kJ of energy is added to 175 g of ice?
velikii [3]

Answer:

m_{leftover}=37g

Explanation:

Hello!

In this case, since the melting process involves the heat added to the system, the heat of fusion and the mass of water:

Q=m\Delta H_{fus}

Thus, as it has been reported that the heat of fusion of ice is 333.6 J/g, we can compute the melted mass of ice as shown below:

m=\frac{Q}{\Delta H_{fus}} =\frac{46000J}{333.6J/g}\\\\m=138g

Thus, the ice leftover results:

m_{leftover}=175g-138g\\\\m_{leftover}=37g

Regards!

6 0
2 years ago
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