Lab 1-7th grade
The Chemistry of Gases. A Gas -Uniformly fills any container. -Mixes completely with any other gas -Exerts pressure on its surroundings.
7.2 Writing Chemical Equations By: Jake Poserina and Tyler Dunphy.
STP Gas Calculations One-step problems: A balloon is filled with 3.78 L of He gas at STP. How many moles of helium atoms are inside? He Solution: 3.78.
Improvements Have students write chemical equations from word equations first, then go the other way. And get a worksheet on these things. Specific Examples.
творчий проектхрл 1
Grudgeball review game for Acids, Bases and Salts
2010 Dewatering Calcs
TEXTILE INDUSTRY AND ENVIRONMENT W.J.K.Dushyanthi Ranpatige Research Officer Industrial Technology Institute.
Chapter 8.1. Warm up 1. What is a chemical reaction? 2. What is conservation of mass? 3. How are the two concepts above related? 4. When heated, solid.
TESTING FOR CATIONS. Calcium (Ca 2+ ) Test with aqueous sodium hydroxide White ppt. insoluble in excess Test with aqueous ammonia No ppt. or very slight.
Last night’s homework: Problems 4-6 on page 282 Questions 7-11 on page 283.
