Mrs. Natalie Green Trimble County High School Science Department April 20, 2015 Mrs. Natalie Green Trimble County High School Science Department

2nd – Chemistry Starter: get out your calculator and writing utensil Practice problems 10-2 Apply wkst Summative exam: tomorrow 2nd chance for learning check #3: Tues or Thur in Mrs. Green’s room

3rd & 4th – Physical Science Bell Ringer: Why are the products of fission reactions unsafe? If you were absent Friday, Show me 5 bell ringers from last week Go over Learning Check #3 Pass back graded work Begin Study Guide Test over Chapter 16 on Wednesday April 22

5th – Chemistry Starter: get out your calculator and writing utensil New Practice problems – New Groups 10-2 Apply wkst Summative exam: tomorrow 2nd chance for learning check #3: Tues or Thur in here

Chemistry Groups 1 2 3 4 KAYLEE TATUM NATHAN KAYLA ALEESHA LAURYN SAM TANNER JAMIE KATE 5 6 7 8 KALLIE GABBIE JENNA ZACH DESTINI KOLTON COLE BETHANY NINI SABLE MARANDA DESTINY

Chemistry I Practice Problems What is the formula mass of CCl4? Convert 67.3 grams of H3PO4 to moles. What is the atomic mass of Phosphorus? How many molecules of Ca(NO3)2 are in 23.4 grams? Convert 57.3 moles of nitrogen gas into Liters at STP. Convert 267.3 grams of H2SO4 to molecules. What is the molar mass of pentane (C5H12)? A storage tank of helium has a volume of 500. L contains how many moles of He at STP? A sample of iron oxide has a mass of 3.192 g. It is analyzed and found to contain 2.232 g of iron and 0.96 g of oxygen. Find the percentage composition of this compound. Find the molecular formula of a compound that contains 40% carbon, 6.7% hydrogen and 53.3% oxygen. The molar mass of the compound is 180 g/mol.

6th - Forensics Bell Ringer: In what physical state must a fuel exist in order to produce combustion when it reacts with oxygen? Why must it be in this state? If you were absent Friday, Show me 5 bell ringers from last week Grade 11.1 & 11.2 Questions Finish CSI 11.3 Notes TV report #8 due Friday May 1st