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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
names of acid redicals of group 1
why sio doesn''t exist under normal conditions
DEGREE OF HARDNESS: The degree of hardness of water is conveniently expressed in terms of equivalent amount of CaCO 3 . Although hardness of water is never present in th
Mention one property which is caused due to the presence of F-centre in a solid. a) Write down Nernst equation for single electrode potential.
A 4-m long curved gate is located in the side of a reservoir containing water as shown in Figure. Determine the magnitude of the horizontal and vertical components of the force of
1. The pH of a 0.02 M solution of an acid was measured as 4.6. a) What is the [H + ] of the solution? b) What is the acid dissociation constant K an
Why does lycopene absorb at loner wavelength than beta carotene though both have same number of double bonds?
Bohr's model can explain : (1) The spectrum of hydrogen atom only (2) Spectrum of atom or ion containing one electron only (3) The spectrum of hydrogen molecule (4
Principal quantum number of an atom represents : (1) Size of the orbital (2) Spin angular momentum (3) Orbital angular momentum (4) Space orientation of the orbital
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