Transcript Counting Atoms Worksheet

Counting Atoms Worksheet
• NaCl
– Na = 1
– Cl = 1
• BaCl2
– Ba = 1
– Cl = 2
• BaSO4
– Ba = 1
–S = 1
–O = 4
• CaSO4
– Ca = 1
–S = 1
–O = 4
• K2Cr2O7
–K = 2
– Cr = 2
–O = 7
• C6H4Cl2
• Mg (OH)2
• C2H4O2
• C7H5(NO2)3
–C = 6
–H = 4
– Cl = 2
–C = 2
–H = 4
–O = 2
• CH3OH
–C = 1
–H = 4
–O = 1
– Mg = 1
–O = 2
–H = 2
–C = 7
–H = 5
–N = 3
–O = 6
• Ca (H2PO4)2
– Ca = 1
–H = 4
–P = 2
–O = 8
• (CH3)2CO
• 2CHC3OOH
• 2HBr
• 6C6H4BrOH
–C = 3
–H = 6
–O = 1
–H = 2
–Br = 2
–C = 8
–H = 4
–O = 4
– C = 36
– H = 30
– Br = 6
–O = 6
E, C, M, Worksheet
1. Element
– Any substance that contains only one kind of atom
– Cannot be broken down
2. Compound
– Consists of atoms of two or more different elements
– Can be broken down
3. Mixture
– Consists of two or more different
elements/compounds
– Can be separated
E, C, M, Worksheet
4. Homogeneous – Evenly mixed/distributed
Hetergeneous – Not evenly mixed
E, C, M, Worksheet
6. Element
7. Compound
8. Homogeneous Mixture
9. Heterogeneous Mixture
10. Homogeneous Mixture
11. Compound
E, C, M, Worksheet
12. Homogeneous / Heterogeneous Mixture
13. Heterogeneous Mixture
14. Element
15. Compound
16. Compound
17. Element
18. Homogeneous Mixture
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19. Heterogeneous Mixture
20. Homogeneous Mixture
21. Heterogeneous Mixture
22. Homogeneous/Heterogeneous Mixture
23. Element
24. Heterogeneous Mixture
25. Heterogeneous Mixture
26. Element
E, C, M, Worksheet
27. Compound
28. Homogeneous Mixture
29. Heterogeneous Mixture