Upload
armen
View
22
Download
0
Tags:
Embed Size (px)
DESCRIPTION
Classify the following properties as Physical or Chemical:. 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. - PowerPoint PPT Presentation
Citation preview
Classify the following properties as Physical or Chemical:
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
• 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
•Name 3 physical and 3 chemical changes
• A metal sample has a mass of 45.65 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?
• A metal sample has a mass of 45.65 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%
• Where are the metals located on the periodic table?
• Nonmetals?• Metalloids?• Noble Gases?• Where is Hydrogen?
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
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
•DRAW AN ATOM. USE AS MUCH DETAIL AS YOU CAN.
•How would you separate a mixture of sand and salt water into three pure substances?
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?
1. How many protons and neutrons are there in an Iodine -131 nucleus?
53 P 78 n2. A nuclide contains 86 protons and 136
neutrons. What element is it, and what is its mass number? Rn-222
• Write the nuclear equation for the beta decay of Th-234.
• Write the nuclear equation for the beta decay of Th-234.
• Pa- 234 is daughter
• What are the 3 types of radiation? What are their mass, charge, and penetrating power?
•Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. • Is it a cation or an anion?
•Write the symbol for a silver ion that has 46 electrons, and 61 neutrons. 107Ag+
• Is it a cation or an anion?• Cat
•Calculate the number of moles in a 100 mg sample of tin. Use dimensional analysis.
•8 x 10 -4 moles
•Do problem 19 on page 90
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?
• Why are the noble gases nonreactive?
• 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?
Parts Per Million
• Concentration Units used for very dilute solution
• Parts Per Million =• Grams Solute x 1 x 106
• Grams Solution
• 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 106
• Grams Solution
• 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 106
• Grams Solution
Draw Lewis dot structures for:
CO2, Cl-, O2
•Write the nuclide notation for the ion having 30 protons, 28 electrons, and 35 neutrons.
• Summarize the following periodic trends:
• Atomic radius• Ionization energy• Metallic character• electronegativity
Rb, Sn, or Xe?
• Which is smaller?
• Which has lower ionization energy?
• Which is most electronegative?
• Which is most metallic?