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Chemistry Quiz 37 (25 MCQs)

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1. A quality or condition of a substance that can be observed or measured without changing the substance's composition.
2. Three of the following must contain two more kinds of atoms. Which one does not contain two or more kinds of atoms?
3. The boiling point of water is _____
4. What is empirical formula?
5. Name the element which has maximum number of naturally occurring isotopes.
6. Why do ionic substances conduct when they are molten or in solution?
7. Which branch of chemistry would take results of an experiment and determine what the results would be at different conditions?
8. The atomic number will always be the same as
9. What happens to the pH of a acid during neutralisation?
10. What is made up two or more elements that are chemically combined?
11. Meaning of Matter
12. Potassium permanganate symbol?
13. The gaseous state of a substance that is generally a liquid or solid at room temperature.
14. In the laboratory, one should NEVER _____
15. A Mixture is defined as
16. Which of the following terms identifies the change from a liquid to gas?
17. Calculating and finding out how much nitrogen is in a sample of air is which study
18. The atomic number is equal to the number of
19. A solution has a pHof 3. What type of solution is this?
20. Which of the following is true about glacial ethanoic acid?
21. Carbogen is a mixture of
22. What is the equation to show what happens to chloride ions at the anode.
23. How many electrons can fit in the second energy level?
24. Determine whether each material below is a pure substance-element, pure substance-compound, a homogeneous mixture, or a heterogeneous mixture.raisin bran cereal
25. Matter that has exactly the same composition is classified as a _____
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