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Chemistry Quiz 23 (25 MCQs)

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1. A _____ can be used to help visualize microscopic structures and events.
2. An intensive property that refers to the perception of the different wavelengths of light.
3. Name a naturally occurring radioactive gas.
4. What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?
5. When balancing equations, the rule is that you can only add, change, and remove _____
6. A solid substance that form from a solution.
7. Matter that flows but has a definite volume
8. Chemists who study the chemistry of living organisms work in the field of _____
9. The branch of Chemistry which deals with substances containing $ carbon$ is called _____
10. Li3N + 3 NH4NO3 $\rightarrow$ 3 LiNO3 + 1 (NH4)3N
11. Compounds are made from the atoms of two or more _____
12. It is one of the frontiers that the chemists are currently exploring in relation to the planting and harvesting of good quality crops.
13. Which compound is produced in the reaction between but-2-ene and steam?
14. A _____ is a combination of many different elements not chemically combined.
15. A 3.7 g sample of copper(II) carbonate is added to 25 cm3 of 2.0 mol dm-3 hydrochloric acid. Which volume of gas is produced under room conditions?
16. These are portions of a material of approximately the same size that are carried through an analytical procedure at the same time and in the same way.
17. The following is a type of structural isomerism, EXCEPT:
18. In a solution which part of the solution is the solute:ice tea mix or water?
19. The type of reaction that occur in alkenes
20. Describe a solute.
21. Balance this equation _____ CF4 + _____ Br2 _____ CBr4 + _____ F2
22. If a mystery element is shiny, brittle and a conductor, you would look under which category?
23. How many atoms of carbon (C) are in C6H12O6?
24. What subatomic particles are found in the nucleus and have a positive charge?
25. What is the empirical formula of a compound if the molecular formula is W18O9?
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