2. Grade 10 – chemistry pre-quiz 1) Identify the physical change in the following list: a) water boiling b) making toast c) rusting d) rotting food

3. Grade 10 – chemistry pre-quiz 2) Identify the chemical change in the following list: a) clouds forming b) ice cream melting c) food rotting d) breaking glass

4. Grade 10 – chemistry practice quiz 3) Substances composed of identical atoms are: a) compounds b) elements c) molecules d) solutions

5. Grade 10 – chemistry practice quiz 4) “Solution” is synonymous with: a) molecule b) compound c) mixture d) homogeneous mixture

6. Grade 10 – chemistry practice quiz 5) Groups on the periodic table are organized as: a) rows b) columns c) families d) elements with similar size

7. Grade 10 – chemistry practice quiz 6) Group 1 elements are known as a) Halogens b) Noble gases c) Transition metals d) Alkali metals

8. Grade 10 – chemistry practice quiz 7) Alkali metals are grouped together because they share similar a) size b) mass c) outer shells of electrons d) number of protons

9. Grade 10 – chemistry practice quiz 8) Elements which have characteristics of both metals and non-metals are: a) transition metals b) metalloids c) alkali earth metals d) halogens

10. Grade 10 – chemistry practice quiz 9) Complete the table Element name Atomic Number Atomic Mass # of protons #of neutrons #of electrons Lithiuma)b)c)d)e) f)g)19.00h)i)j) k)l)m)n)o)11

11. Grade 10 – chemistry practice quiz 10a) Draw a Bohr diagram for oxygen atom 10b) Draw a Bohr diagram for the oxide ion

12. 11) Give the name and the chemical formula for the compound formed by the following pairs of atoms. a) sodium and bromine b) magnesium and chlorine c) beryllium and phosphorus

13. Grade 10 – chemistry pre-quiz 1) Identify the physical change in the following list: a) water boiling b) making toast c) rusting d) food rotting

14. Grade 10 – chemistry pre-quiz 1) Identify the physical change in the following list: a) water boiling b) making toast c) rusting d) food rotting

15. Grade 10 – chemistry pre-quiz 2) Identify the chemical change in the following list: a) clouds forming b) ice cream melting c) food rotting d) breaking glass

16. Grade 10 – chemistry pre-quiz 2) Identify the chemical change in the following list: a) clouds forming b) ice cream melting c) food rotting d) breaking glass

17. Grade 10 – chemistry practice quiz 3) Substances composed of identical atoms are: a) compounds b) elements c) molecules d) solutions

18. Grade 10 – chemistry practice quiz 3) Substances composed of identical atoms are: a) compounds b) elements c) molecules d) solutions

19. Grade 10 – chemistry practice quiz 4) “Solution” is synonymous with: a) molecule b) compound c) mixture d) homogeneous mixture

20. Grade 10 – chemistry practice quiz 4) “Solution” is synonymous with: a) molecule b) compound c) mixture d) homogeneous mixture

21. Grade 10 – chemistry practice quiz 5) Groups on the periodic table are organized as: a) rows b) columns c) families d) elements with similar size

22. Grade 10 – chemistry practice quiz 5) Groups on the periodic table are organized as: a) rows b) columns c) families d) elements with similar size

23. Grade 10 – chemistry practice quiz 6) Group 1 elements are known as a) Halogens b) Noble gases c) Transition metals d) Alkali metals

24. Grade 10 – chemistry practice quiz 6) Group 1 elements are known as a) Halogens b) Noble gases c) Transition metals d) Alkali metals

25. Grade 10 – chemistry practice quiz 7) Alkali metals are grouped together because they share similar a) size b) mass c) outer shells of electrons d) number of protons

26. Grade 10 – chemistry practice quiz 7) Alkali metals are grouped together because they share similar a) size b) mass c) outer shells of electrons d) number of protons

27. Grade 10 – chemistry practice quiz 8) Elements which have characteristics of both metals and non-metals are: a) transition metals b) metalloids c) alkali earth metals d) halogens

28. Grade 10 – chemistry practice quiz 8) Elements which have characteristics of both metals and non-metals are: a) transition metals b) metalloids c) alkali earth metals d) halogens

29. Grade 10 – chemistry practice test 6) Complete the table Element name Atomic Number Atomic Mass # of protons #of neutrons #of electrons Lithiuma)b)c)d)e) f)g)19.00h)i)j) k)l)m)n)o)p) 3 7 9 Fluorine 3 9 4 3 10 9 Sodium 11 2311 12 11

30. Grade 10 – chemistry practice quiz 10a) Draw a Bohr diagram for oxygen atom 10b) Draw a Bohr diagram for the oxide ion

31. 11) Give the name and the chemical formula for the compound formed by the following pairs of atoms. a) sodium and bromine b) magnesium and chlorine c) beryllium and phosphorus