Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a ga
1 answer:
Answer: Option (a) is the correct answer.
Explanation:
Sodium bromide (NaBr) is an ionic salt as it is formed by transfer of an electron from sodium to bromine atom.
Whereas , HCN,
and
are all covalent compounds. And, all of them exists as a gas at room temperature.
Also according to rate of diffusion law, rate of diffusion is inversely proportional to square root of molecular weight of gas.
Mathematically, Rate of diffusion =
Out of the given options NaBr has the highest molecular weight which is 102.894 g/mol.
Thus, we can conclude that NaBr is most likely not a gas at room temperature.
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Answer:
Explanation: The chemical reaction is written by writing down the chemical formulas of the reactants on the left hand side and the chemical formulas of products on the right hand side separated by a right arrow.
This is a single displacement reaction in which a more reactive element displaces the less reactive element from its salt solution. Thus sodium is more reactive than Mg and thus displaces it from .
The number of atoms of each element must be same on both sides of the reaction so as to follow the law of conservation of mass. Thus the equation is balanced.
Answer:
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Explanation:
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