The following data table indicates the number of hours spent on school work last week. If 4 hours was spent on mathematics, how many hours were spent on all homework assignments? School Work Hours (%) Science 43.75 Mathematics 25.00 History 12.50 Reading 12.50 Art 6.25

What are the steps in the Chapman cycle? Explain the importance.

a. There are 365 days per year, 24 hours per day, 12 months per year, and 60 minutes per hour. Use these data (o deter- mine how many minutes are in a month. b. Now use the following data to calculate the number of minutes in a month: 24 hours per day, 60 minutes per hour, 7 days per week, and 4 weeks per month. c. Why are these answers different? Which (if any) is more correct? Why?

The volume of a square pyramid is (1/3)Bh where B is the area of the square base and h is the height. One student's measurements of a pyramid are B=1.33m2 h=2.79 m. Another student's measurements of the same pyramid are B=1.31m2, h=2.81 m. What is the difference in the volumes of the pyramid calculated by the two students?

1.78 Some farmers use ammonia, NH3, as a fertilizer. This ammonia is stored in liquid form. Use the participate perspective to show the transition from liquid ammonia to gaseous ammonia.

Extracting Information from Graphical Data The following graph shows the average SAT score for incoming students at up- and-coming University. a. What is the total increase in SAT score over this period? b. What is the average yearly increase in SAT score over this period? c. What is the total percentage increase in SAT score over this period? d. What is the average yearly percentage increase over this period?

What is the reading of the volume (mL) ml 100 90 80 70 Your answer What is the reading of the volume (mL) * OU 70 60 Your answer What is the reading of the volume (mL) * 8. Your answer What is the reading of the volume (mL) * otouBRARY ARY SCIENtOLIBR 3 Your answer Co CEphotouBRARY SCIENCEP SCIENCEphotouBR SCIENCEphotoLIBRARY

ITEMS USED FOR EXPERIMENT: •Ring stand •Hot plate •125 mL Erlenmeyer flask•400 mL beaker•10 mL graduated cylinder •Aluminum foil•Rubberband•Paper Clip•Thermometer•Vial containing unknown liquid You know have the following data: Mass of flask + foil + rubberband: 78.637 gMass of flask + foil and rubberband+ unknown condensed liquid: 78.847 gTemperature of water bath: 100C = 373 KPressure of gas in our system: 29.02 inHg = 0.9699 atmVolume of gas in our system: 141 mL = 0.141 L 1. During the experiment, you collect the following data: Mass of flask: 80.001 g Mass of flask + unknown condensed liquid: 80.452 g Temperature of water bath: 100 °C Pressure of gas in our system: 0.998 atm Volume of gas in our system: 265 mL Which of the following number(s) need a conversion before they can be used? (Check all that apply) [ ] Group of answer choices [ ] Volume of gas in our system [ ] Mass of flask [ ] Temperature of water bath [ ] Pressure of gas in our system [ ] Mass of flask +…

To identify a liquid substance, a student determined itsdensity. Using a graduated cylinder, she measured out a 45-mLsample of the substance. She then measured the mass of thesample, finding that it weighed 38.5 g. She knew that the substancehad to be either isopropyl alcohol 1density 0.785 g>mL2or toluene 1density 0.866 g>mL2. What are the calculated densityand the probable identity of the substance?

Complete the following table. Be sure each of your answer entries has the correct number of significant digits. food a chocolate chip cookie a cup of chicken noodle soup a raw carrot cal energy content when eaten 0 4.50 x 10 10* kcal 1 75.0 kJ 0 126. x10 X Ś