D)Hydrogen sulphide is a colourless crystalline compound which is freely soluble in water.
Lithium (Li)
Atomic Number: 3
Atomic Mass: 6.941 amu
3 protons, 3 electrons, 4 neutrons
Magnesium (Mg)
Atomic Number: 12
Atomic Mass: 24.305 amu
12 protons, 12 electrons, 12 neutrons
Oxygen (O)
Atomic Number: 8
Atomic Mass: 15.9994 amu
8 protons, 8 electrons, 8 neutrons
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Answer:
11
1. 6.02×10 23
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Answer:
Empirical formula is SeBr₄
Explanation:
Given data:
Mass of selenium = 7.928 g
Mass of bromine = 32.072 g
Empirical formula = ?
Solution:
Number of gram atoms of Se = 7.928/ 78.96 = 0.1
Number of gram atoms of Br = 32.072 / 79.9 = 0.4
Atomic ratio:
Se : Br
0.1/0.1 : 0.4/0.1
1 : 4
Se : Br = 1 : 4
Empirical formula is SeBr₄
Answer:
An unsaturated solution is a chemical solution in which the solute concentration is lower than its equilibrium solubility.
Explanation: