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Basic Chemistry Practice Test: Atoms, Molecules, and Ions
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Basic Chemistry Practice Test: Atoms, Molecules, and Ions
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25 Questions

1. The charge on an electron was determined in the __________.
2. Which one of the following is not one of the postulates of Dalton's atomic theory?
3. What is the formula of the compound formed between strontium ions and nitrogen ions?
4. In the Rutherford nuclear-atom model, __________.
5. The correct name for N2O5 is __________.
6. The correct formula for molybdenum(IV) hypochlorite is __________.
7. How many electrons does the Al3+ ion possess?
8. The correct name for K2S is __________.
9. Of the following, the smallest and lightest subatomic particle is the __________.
10. Which one of the following is the formula of hydrochloric acid?
11. Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?
12. Which element forms an ion with the same charge as the ammonium ion?
13. Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties?
14. How many protons does the Br- ion possess?
15. The species __________ contains 16 neutrons.
16. The correct name for CCl4 is __________.
17. Which metal does not form cations of differing charges?
18. Cathode rays are deflected away from a negatively charged plate because __________.
19. The correct name for CaH2 is __________.
20. The correct name for Mg(ClO3 )2 is __________.
21. Which pair of elements is most apt to form a molecular compound with each other?
22. The correct name for HClO3 is __________.
23. The correct name for H2CO3 is __________.
24. An element that appears in the lower left corner of the periodic table is __________.
25. The correct name for Na3N is sodium azide.

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