Chemistry: Unit 1

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There are _____ L in 1 ML (Megaliter).<br> <input type="radio" name="q1" value="100">100<br> <input type="radio" name="q1" value="1000">1000<br> <input type="radio" name="q1" value="1,000,000">1,000,000<br> <input type="radio" name="q1" value="0.1">0.1<br> <p> 2. There are _____ g in 1 cg.<br> <input type="radio" name="q2" value="0.1">0.1<br> <input type="radio" name="q2" value="0.01">0.01<br> <input type="radio" name="q2" value="0.001">0.001<br> <input type="radio" name="q2" value="0.0001">0.0001<br> <p> 3. If I multiply the following measured values together to get the volume, what is the correct answer? 1.200 cm, 0.35 cm, 0.004 cm<br> <input type="radio" name="q3" value="0.001680 cm3">0.001680 cm3<br> <input type="radio" name="q3" value="0.00168 cm3">0.00168 cm3<br> <input type="radio" name="q3" value="0.0017 cm3">0.0017 cm3<br> <input type="radio" name="q3" value="0.002 cm3">0.002 cm3<br> <p> 4. A measured length of 0.01020 m has _____ significant figures.<br> <input type="radio" name="q4" value="2">2<br> <input type="radio" name="q4" value="3">3<br> <input type="radio" name="q4" value="4">4<br> <input type="radio" name="q4" value="5">5<br> <p> 5. Round off the answer to the following problem correctly: 1.529 x 2.30 x 0.02 = 0.070334<br> <input type="radio" name="q5" value="0.07">0.07<br> <input type="radio" name="q5" value="0.070">0.070<br> <input type="radio" name="q5" value="0.0703">0.0703<br> <input type="radio" name="q5" value="0.07033">0.07033<br> <p> 6. If I have high energy light, the frequency is _____, and the wavelength is _____.<br> <input type="radio" name="q6" value="low, short">low, short<br> <input type="radio" name="q6" value="low, long">low, long<br> <input type="radio" name="q6" value="high, short">high, short<br> <input type="radio" name="q6" value="high, long">high, long<br> <p> 7. What is the symbol for the element tin?<br> <input type="radio" name="q7" value="Tn">Tn<br> <input type="radio" name="q7" value="T">T<br> <input type="radio" name="q7" value="Fe">Fe<br> <input type="radio" name="q7" value="Sn">Sn<br> <p> 8. What is the name of the element whose symbol is S?<br> <input type="radio" name="q8" value="Sulfur">Sulfur<br> <input type="radio" name="q8" value="Sodium">Sodium<br> <input type="radio" name="q8" value="Silicon">Silicon<br> <input type="radio" name="q8" value="Silver">Silver<br> <p> 9. The subatomic particle with the smallest mass is the<br> <input type="radio" name="q9" value="proton">proton<br> <input type="radio" name="q9" value="neutron">neutron<br> <input type="radio" name="q9" value="electron">electron<br> <input type="radio" name="q9" value="beta">beta<br> <p> 10. Which of the following would be classified as a representative element?<br> <input type="radio" name="q10" value="Fe (#26)">Fe (#26)<br> <input type="radio" name="q10" value="K (#19)">K (#19)<br> <input type="radio" name="q10" value="U (#92)">U (#92)<br> <input type="radio" name="q10" value="Cu (#29)">Cu (#29)<br> <p> 11. All of the semiconductors belong to which group?<br> <input type="radio" name="q11" value="metals">metals<br> <input type="radio" name="q11" value="non-metals">non-metals<br> <input type="radio" name="q11" value="representative elements">representative elements<br> <input type="radio" name="q11" value="inner transition metals">inner transition metals<br> <p> 12. The element in period 3 which is an alkali metal is<br> <input type="radio" name="q12" value="Na">Na<br> <input type="radio" name="q12" value="Mg">Mg<br> <input type="radio" name="q12" value="Li">Li<br> <input type="radio" name="q12" value="Ca">Ca<br> <p> 13. The process of a neutron striking a heavy nucleus, splitting it into two or more smaller nuclei and releasing energy is called _____.<br> <input type="radio" name="q13" value="fission">fission<br> <input type="radio" name="q13" value="hydrolisis">hydrolisis<br> <input type="radio" name="q13" value="fusion">fusion<br> <input type="radio" name="q13" value="binary replication">binary replication<br> <p> 14. Which of the following is an isotope of strontium-84 (atomic number = 38)?<br> <input type="radio" name="q14" value="calcium-38 (atomic number = 20)">calcium-38 (atomic number = 20)<br> <input type="radio" name="q14" value="yttrium-84 (atomic number = 39)">yttrium-84 (atomic number = 39)<br> <input type="radio" name="q14" value="rubidium-84 (atomic number = 37)">rubidium-84 (atomic number = 37)<br> <input type="radio" name="q14" value="strontium-85 (atomic number = 38)">strontium-85 (atomic number = 38)<br> <p> 15. The density of mercury is 13.0 g/cm3. What is the specific gravity of mercury if 26 g has a volume of 2 mL?<br> <input type="radio" name="q15" value="26 g">26 g<br> <input type="radio" name="q15" value="2 mL">2 mL<br> <input type="radio" name="q15" value="13.0 g/mL">13.0 g/mL<br> <input type="radio" name="q15" value="13.0">13.0<br> <p> 16. Calcanium (atomic number = 20) and strontium (atomic number = 38) have similar properties because _____.<br> <input type="radio" name="q16" value="They both have the same number of electrons in their first shell">They both have the same number of electrons in their first shell<br> <input type="radio" name="q16" value="They both have the same number of neutrons">They both have the same number of neutrons<br> <input type="radio" name="q16" value="They both have the same number of electrons in their outer shell">They both have the same number of electrons in their outer shell<br> <input type="radio" name="q16" value="They both have the same number of electrons total">They both have the same number of electrons total<br> <p> 17. The electron arrangement of aluminum (atomic number = 13) is _____.<br> <input type="radio" name="q17" value="2">2<br> <input type="radio" name="q17" value="2, 8, 3">2, 8, 3<br> <input type="radio" name="q17" value="2, 8">2, 8<br> <input type="radio" name="q17" value="2, 11">2, 11<br> <p> 18. A neutron has a mass of _____ amu and a charge of _____.<br> <input type="radio" name="q18" value="1, 0">1, 0<br> <input type="radio" name="q18" value="0, 0">0, 0<br> <input type="radio" name="q18" value="0, 1">0, 1<br> <input type="radio" name="q18" value="1, 1">1, 1<br> <p> 19. The valence electrons refer to<br> <input type="radio" name="q19" value="the number of electrons in the innermost shell">the number of electrons in the innermost shell<br> <input type="radio" name="q19" value="The free-radical electrons">The free-radical electrons<br> <input type="radio" name="q19" value="The number of electrons in each shell">The number of electrons in each shell<br> <input type="radio" name="q19" value="The number of electrons in the outermost shell">The number of electrons in the outermost shell<br> <p> 20. The half-life of iodine-131 is 8 days. 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