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the correct answer and white the choice on your answer sheet. 1. It is the most accepted theory of the origin and continuous expansion of the universe? A. Big bang Theory B. Oscillating Universe Theory C. Steady State Theory D. Theory of the Primordial soup 2. What will happen to a star that runs out of hydrogen? A. Still able to generate heat and glows red. B. It begins to contract, glow, and become stable. C. It cooled down and no longer emits light and heat. D. Unable to generate heat that leads to its contraction and expansion. 3. Ernest Rutherford successfully carried out nuclear transmutation reaction. The term transmutation refers to the A. Gain of energy as a result of mass loss. B. Gain or loss of electrons by neutral atom. C. Change in the number of electrons in an atom. D. Change of one element into an entirely new element. 4. In a nonpolar covalent bond, electrons are A. Located in a mobile "sea" B. Shared equally by two atoms C. Shared by two atoms in a compound D. Transferred from one atom to another 5. Which of the following molecules is nonpolar? A. CO2 B. CHCl3 an Rosalina Subj C. H₂O D. NH3 6. Which substance, H2O (water) and CH3OH (methanol), is likely to have the higher normal boiling point and why? A. CH3OH because it is an alcohol B. H2O because it is the universal solvent C. CH3OH because it has higher molar mass D. H2O because of stronger hydrogen bonding. SHS Physical Science | Page 1
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