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Classify the following properties as Physical or Chemical:

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Presentation on theme: "Classify the following properties as Physical or Chemical:"— Presentation transcript:

1 Classify the following properties as Physical or Chemical:

2 Physical or Chemical? Bright red or orange-red in color Soluble in water Decomposes when exposed to light odorless gas crystalline solid at room temperature Supports combustion Liquid at room temperature Ductile and malleable

3 Reacts vigorously with metals Melts at 1500 C Can be cut with a knife Density of 0.97g/mL Normal Boiling point of 80 C Oxidizes when exposed to air Specific heat of 3.5 J/g-C

4 Name 3 physical and 3 chemical changes

5 A metal sample has a mass of g. The volume of the sample is 16.5 cm3. What is the density of the sample? If the actual density of the sample is 2.70 g/cm3, what is the % error in the calculated density?

6 A metal sample has a mass of g. The volume of the sample is 16.5 cm3. What is the density of the sample? 2.77g/cm3 If the actual density of the sample is 2.70 g/cm3, what is the % error in the calculated density? 3%

7 Where are the metals located on the periodic table? Nonmetals? Metalloids? Noble Gases? Where is Hydrogen?

8 Name the element: Alkali metal in period 2 Metalloid in the Al family Chalkogen in period 4 Noble Gas in period 6 Only metal that is a liquid at Room Temp Only nonmetal that is a liquid at Room Temp

9 Name the element: Alkali metal in period 2 Li Metalloid in the Al family B Chalkogen in period 4 Se Noble Gas in period 6 Rn Only metal that is a liquid at Room Temp Hg Only nonmetal that is a liquid at Room Temp Br

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11 How would you separate a mixture of sand and salt water into three pure substances?

12 1.How many protons and neutrons are there in an Iodine -131 nucleus? 2.A nuclide contains 86 protons and 136 neutrons. What element is it, and what is its mass number?

13 1.How many protons and neutrons are there in an Iodine -131 nucleus? 53 P 78 n 1.A nuclide contains 86 protons and 136 neutrons. What element is it, and what is its mass number? Rn-222

14 Write the nuclear equation for the beta decay of Th-234.

15 Pa- 234 is daughter

16 What are the 3 types of radiation? What are their mass, charge, and penetrating power?

17 Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. Is it a cation or an anion?

18 Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. 107 Ag + Is it a cation or an anion? Cat

19 Calculate the number of moles in a 100 mg sample of tin. Use dimensional analysis. 8 x moles

20 Do problem 19 on page 90

21 1.What charge would a calcium ion have?. 2.What is the electron configuration for this ion? 3.What is the abbreviated electron configuration for silver?

22 Why are the noble gases nonreactive?

23 See Figure 6 on page 101. What are the 4 spectral lines in Hydrogen’s emission spectrum? (What are the colors and their wavelengths) How do these lines form?

24 Parts Per Million Concentration Units used for very dilute solution Parts Per Million = Grams Solute x 1 x 10 6 Grams Solution

25 A 1.00 Liter sample of contaminated water contains 420 mg of Nitrate ion. What is the concentration of the nitrate ion in parts per million (ppm)? Parts Per Million = Grams Solute x 1 x 10 6 Grams Solution

26 A 1.00 Liter sample of contaminated water contains 420 mg of Nitrate ion. What is the concentration of the nitrate ion in parts per million (ppm)? 420 ppm Parts Per Million = Grams Solute x 1 x 10 6 Grams Solution

27 Draw Lewis dot structures for: CO 2, Cl -, O 2

28 Write the nuclide notation for the ion having 30 protons, 28 electrons, and 35 neutrons.

29 Summarize the following periodic trends: Atomic radius Ionization energy Metallic character electronegativity

30 Rb, Sn, or Xe? Which is smaller? Which has lower ionization energy? Which is most electronegative? Which is most metallic?


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