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2 pt

Element, Compound Mixture. Models & Formulas. Bonding. Periodic Table. Equations. 1pt. 1 pt. 1 pt. 1pt. 1 pt. 2 pt. 2 pt. 2pt. 2pt. 2 pt. 3 pt. 3 pt. 3 pt. 3 pt. 3 pt. 4 pt. 4 pt. 4pt. 4 pt. 4pt. 5pt. 5 pt. 5 pt. 5 pt. 5 pt.

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2 pt

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  1. Element, Compound Mixture Models & Formulas Bonding Periodic Table Equations 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt

  2. Two or more substances in the same place but not chemically combined are called this.

  3. mixture 1 pt

  4. The Earth’s atmosphere is composed of a bunch of different gasses and is an example of this.

  5. mixture 2 pt

  6. H2O is the formula for water and is an example of this.

  7. compound 3 pt

  8. Chemical formulas are used to represent this.

  9. compound 4 pt

  10. Pure substances are considered pure because they are made from only one type of …….

  11. Particle 5 pt

  12. The number of sulfur atoms in the formula H2SO4.

  13. 1 1 pt

  14. A molecule of silver bromate is composed of 3 oxygen atoms (O), 1 bromine atom (Br), and 1 silver atom (Ag). This is the chemical formula for silver bromate.

  15. AgBrO3 2 pt

  16. Which model below shows a compound? A B C

  17. A 3 pt

  18. Why does model C below show an element? A B C

  19. It’s made from only 1 type of atom. 4 pt

  20. How many different molecules are present in A below? A B C

  21. 1 5 pt

  22. Which of the following compounds is ionic? LiF or C2H4

  23. LiF 1 pt

  24. This type of bond occurs when electrons are shared between atoms.

  25. covalent 2 pt

  26. When atoms gain or lose electrons and become charged particles, they are called this.

  27. ion 3 pt

  28. The joining of atoms to form new bonds is a result of this.

  29. Chemical bonding 4 pt

  30. When new substances form as a result of chemical bonding, their properties do this.

  31. change 5 pt

  32. Elements in the same group on the periodic table of elements have the same number of these.

  33. Valence electrons 1 pt

  34. Noble gasses don’t form bonds because of this.

  35. They have full outer shells and are stable. 2 pt

  36. The number of valence electrons for an element can be found by using this on the periodic table of elements.

  37. The group number. 3 pt

  38. Why do elements in group 1 react so easily?

  39. They only have 1 valence electron. 4 pt

  40. Group 16 elements bond easily with this group.

  41. Group 2 5 pt

  42. Is the following equation balanced?SnO + 2 H2 → Sn + 2 H2O

  43. No 1 pt

  44. What is/are the coefficient/s in the following equation. 2 C4H10 + 13 O2 → 8 CO2(g)  +  10 H2O

  45. 2, 13, 8, 10 2 pt

  46. What is/are the reactant/s in the following equation? NaCl  +  AgNO3  →   NaNO3  +  AgCl

  47. NaCl + AgNO3 3 pt

  48. What is/are the product/s in the following equation? 2Mg  +  O2  →    2MgO

  49. 2MgO 4 pt

  50. The Law of Conservation of Matter is reflected in balanced equations as the law states this.

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