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When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ
1. Define or explain the following terms: a. Science b. Experimentation c. Scientific method d. Hypothesis e. Theory f. Scientific law g. Chemistry h.
if the bond length in chlorine molecule is 1.98 angstrom and bond length in H-CL molecule is 1.76 angstrom calculate the covalent radius of hydrogen
An electron has kinetic energy 2.8 x 10 -23 J . de-Broglie wavelength will be nearly: (me: 9.1 x 10 -31 kg) (1) 9.28x 10 -4 m (2) 9.28 x10 -7 m
radioactive decay order
Esterification of alcohol
Chemical Properties Proteins - Salt formation (i) Salt formation : Due to existence of both -NH 2 and -COOH groups in proteins, they make salts along with acids and bases.
Soya bean products Soya bean and its flours are used in the preparation of a variety of fermented and non-fermented products in Asian countries. However in India, food use of
when 100ml of M/10 h2so4 is mixed with 500ml of M/10 naoh then nature or resulting solution and normality of excess of reactant left is
Average life of a radioelement is the characteristics property of the element. Explain
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