1. April 1 Convert as asked and show work. 1.Convert 35 lb/in 2 to kg / cm 2. 2.Convert 150 km/hr to mile/hr.

2. April 3 Convert as asked and show work. 1.Convert 77 g of NaBr to moles. 2.Convert 4.2 moles of ZnCl 2 to grams.

3. April 7 Convert as asked and show work. 1.Convert 0.78 moles of CsBr to molecules. 2.Convert 5.4 x 10 23 mc of CsBr to moles.

4. April 9 Convert as asked and show work. 1.Convert 250 g of LiF to molecules. 2.Convert 7.3 x 10 22 mc of LiF to grams.

5. April 15 Convert as asked and show work. The distance between Wichita and Washington DC is ______ miles. A single paper clip is 2 cm long. How many trips between Wichita and DC could be made with a mole of paper clips?

6. April 17 : the data Plot the mass of citric acid on the x-axis and vol of CO 2 on the y-axis. Find the slope of your line. Mass citric acid, g Vol CO 2, cm 3 0.15 0.210.2 0.314.7 0.419.3

7. April 17: the graph

8. April 21 Tensile strength with and without pre- stretching of various types of rubberbands Average Tensile strength at 25 o C, N/mm 2 Rubber- band type no pre- stretching pre- stretching A52 B10082 C8786 D44 Four types of rubber bands were cut to form single 10 cm long strands with cross- sectional areas of 3 mm 2. Each rubber band was stretched until broken. The force needed to break the band was recorded. Twenty- five rubber bands of each type were tested, and the data were averaged, as shown in Tensile strength data table.

9. April 21 Graph the rubberband data with an appropriate title and label on axes. You will need a key to do this correctly.

10. April 23 Average Tensile strength vs temperature and type of rubberband Tensile strength, N/mm 2 Rubber-band type10 o C50 o C A6839 B11092 C8781 D42 Graph the rubberband data with an appropriate title and label on axes. You will need a key to do this correctly.

11. April 23 Graph the rubberband data with the appropriate title and axes labels. A key will be necessary.

12. April 27 Type of solid Melting behavior Solubility in water Electrical conductivity Impact behavior Ionic Most melt between 600 o C and 1500 o C Some are soluble. Conductive when melted Shatters Molecular Most melt between -150 o C and 300 o C Most are not soluble. Non- conductive Shatters Metallic Most melt between -39 o C and 3400 o C Most are not soluble. Conduct as liquids or solids Malleable Covalent network Most melt between 1000 o C and 3000 o C Most are not soluble. Noncon- ductive except for metalloids and graphite Shatters

13. April 27 1.A substance decomposes at 308 – 310 o C, is insoluble, nonconductive, and shatters. Based on this information, how should this solid be classified? 2.Another substance is nonconductive and cannot be melted in a burner flame of 800 o C. Based on this information, how should this solid be classified?

14. April 29 Temperature and Time vs Number of Corn Seeds Sprouting Temp, o C Total Corn Seeds Sprouted 7 days14 days21 days 5000 20253744 35507080 50233

15. April 29 questions 1.Based on the data table, what are the independent variables? 2.Based on the data table, what is the dependent variable? 3.What are three things that would need to be constant for a fair test? 4.What temperature is best for corn seeds to sprout?