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Chemistry Quiz 1 (25 MCQs)

Quiz Instructions:

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1. Why is it important to have a balanced chemical equation?
2. Molecules that do not contain Carbon
3. The outermost level of electrons in an atom is called
4. What happens when LiCl(s) is dissolved in water?
5. Which element ISN'T used by life?
6. The cyclotron is used to
7. Which macromolecule basic unit is glycerol and fatty acids?
8. Who proposed first atomic theory?
9. What is the shorthand electron configuration for Sulfur atom?
10. Increase in temperature of the reactants can do one of the following
11. The actual amount of product in a chemical reaction
12. Which is the smallest part of an element that retains all the properties of the element?
13. A negatively charged ion is called _____
14. How many molecules are in 32.4 grams of phosphorous pentoxide?
15. The mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom
16. The direct source of energy for cells is usually
17. How many electrons should Magnesium have around its Lewis dot model?
18. What particle uniquely identifies an element?
19. Which of these reactions is a combustion reaction?
20. The number 6.022 x 1023 is called _____
21. What state of matter has both a definite shape and volume?
22. These are forces between atoms and molecules of pure substances _____
23. What is the number of moles in 11 grams of CO2.
24. Why is it important that electrolytes are kept at the correct concentration?
25. The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is
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