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give 2 examples of compounds that are bonded in the following ways (a) Hydrogen bonding (b)Vander waal forces (c) Co-ordinate covalent bonding. Explain with the aid of diagram how
In the reactant SO2 + O2 , then in the product it became SO3 , how?
Bohr model of an atom could not account for : (1) Emission spectrum (2) Absorption spectrum (3) Line spectrum of hydrogen (4)Fine spectrum Ans: Fine spectrum
what is mesomeric effect
A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent and
1. For what fraction of annual CO 2 emissions from fossil fuel burning are automobiles responsible? 2. A 1000-kg car travels 1.6 × 10 4 km/yr. What is the ratio of the mass of
Q. What is gamma radiation? The third kind of radiation is gamma radiation (g-radiation) which is high-energy electromagnetic radiation. Gamma radiation is typically emitted
Which of the following rate equations is correct, if the hydrogenation of the adsorbed intermediate is the slowest step of the reaction? When zinc oxide is used as
What methods can I use to understand balancing equations?
A covered glass tube contains 2.25g of copper and 3.32g of sulphur. The mass of the tube as well as its contents is 18.48 g. Upon heating a chemical reaction forms copper(II) sulph
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