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Chemistry Quiz 13 (25 MCQs)

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1. In any physical or chemical change, mass is _____
2. This scientist plotted the graph of atomic volume against atomic mass of elements. He found that the elements at equivalent positions on the curve of the graph had similar chemical properties.
3. An example of an element is
4. Which physical properties are associated with most metals?
5. Group of elements whose ending e-configuration is p5. 7 electrons in outer level, easily gain electrons.
6. Which compound would decolourize bromine water in the dark?
7. A chemical reaction that requires energy is a
8. Air, water, glass and antacid tablets are (#####)
9. State the changes in the methyl orange indicator inside the conical flask containing potassium hydroxide solution, KOH when it reaches end point.
10. Which particle has a positive charge?
11. Which of the following is an ionic bond?
12. Which is NOT a property of metals?
13. Which reagent is needed to change CH3CH=CH2 to CH3CHClCH3
14. Phase change from a liquid to a gas.
15. The branch of chemistry that uses mathematics and computers to design and predict the properties of new compounds.
16. _____ is the branch of chemistry that would identify enzymes and determine reaction mechanisms for biochemical reactions. Pick the ONE that best represents this
17. The experimental relationship between a reaction rate and the concentration of the reactions is known as.
18. In _____ bonds, both atoms exert the same pull on shared electrons.
19. Who is Rutherford
20. _____ is the branch of chemistry that would measure the amount of energy an atom absorbs in nuclear reaction.
21. A chemical reaction that produces energy is a /an
22. During lab activities you should always wear
23. In the chemical name copper (II) sulphate the roman numeral is used to show
24. Atoms unite together to form molecules and compounds by means of.
25. Property that can be measured and observed without changing the composition or identity of a substance.
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