Chemistry Quiz 28 (25 MCQs)

Quiz Instructions:

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1. An element's molar mass can be found on what part of an element's entry on the periodic table?

2. Intracellular fluid is the name for water found in

3. How many atoms are there in chemical formula (H2SO4)?

4. The small number that is written below the symbol and shows how many atoms of each element is present.

5. The calculations of quantities in a chemical reaction

6. Who defined "element" as the simplest composition of matter that cannot be broken down further by any chemical means?

7. Indicates the relative number of moles of each reactant and product in a chemical reaction

8. What type of charge does a proton have?

9. Bond where electrons are shared unequally

10. The electrons in the outermost energy level of an atom are called

11. The elements:C H O N typically represent what proportion of an organism's element make up?

12. Sugar has been dissolved in water. If you want to recover the sugar which process should be carried on?

13. An atom of potassium has atomic mass of 39 amu's and an atomic number of 19. therefore it has how many neutrons

14. When the molecules are moving very fast, the substance is _____

15. A/an _____ is made up of one or more of the same kinds of atom chemically combined.

16. The molecule which has the highest percentage of ionic character among the following is

17. Atoms of the same element, having different mass numbers but the same atomic number is referred to as _____

18. The smallest unit of matter that retains the properties of that matter is

19. Which element has 14 protons?

20. Energy is _____ when new bonds form.

21. What would be the average mass of 6 apples?

22. It is the amount of heat required to vaporize one mole of a substance at its boiling point.

23. The Apple is red is an example of?

24. The tendency of an atom to pull electrons toward itself is referred to as its _____

25. Iodine can be separated from a mixture of Iodine and Potassium Chloride by?