Ch. 3 - Chemical Reactions

Ch. 8 Chemical Reactions II. Balancing Equations (p. 250-254) C. Johannesson I II III IV V A. Balancing Steps 1. Write the unbalanced equation. 2. Count atoms on each side. 3. Add coefficients to make #s equal. Coefficient subscript = # of atoms 4. Reduce coefficients to lowest possible ratio, if necessary.

5. Double check atom balance!!! C. Johannesson B. Helpful Tips Balance one element at a time. Update ALL atom counts after adding a coefficient. If an element appears more than

once per side, balance it last. Balance polyatomic ions as single units. 1 SO4 instead of 1 S and 4 O C. Johannesson C. Balancing Example Aluminum and copper(II) chloride react to form copper and aluminum chloride. 2 Al + 3 CuCl2 3 Cu + 2 AlCl3 2 1 Al 1 2

3 1 Cu 1 3 6 2 Cl 3 6 C. Johannesson

Recently Viewed Presentations

Identification, Symptoms and nature of damage: Fruit fly ...
Identification, Symptoms and nature of damage: Minor pest Leaf Webber Slug caterpillar Red ants ... leaving only the midrib and veins Life Cycle of slug caterpillar Moth lay eggs flat shining eggs in batches of 20-30 on undersurface of leaves....
Learning Target 7.45 I can summarize the effects
The Silk Road Basics. When the Roman Empire and the Han Dynasty fell (and the Middle Ages began), soldiers no longer protected travelers. So the use of the Silk Road declined. In the 1200s Mongols took over China. They once...
Livelihood & Economy: From Blue Collar to Gold Collar
Rostow's. Development Model? Bellwork. If you were a factory owner setting up a new factory, what factors would you take into consideration when deciding where to place your factory? Wallerstein's Dependency Theory.
DoDAAC Basics By Dave 1 Home Organization DoDAACs
I work in an office. That office is identified with a DoDAAC like this one. HQ0102. DoDAAC. DoDAAC stands for DoD Activity Address Code.
How to use your INTERACTIVE SCIENCE NOTEBOOK
An interactive science notebook (ISN) is your own personalized DIARY of science learning. It is a portfolio of your work in ONE convenient spot. This is . great for studying for upcoming quizzes & tests. It is a great ....
Prairie Restoration
Dr. Brewster Higley (1873) "If even one-tenth of the lawns in a community were replaced by prairie plantings, there would be a sizeable reduction in the use of water, fertilizers,and chemical pesticides and in the fuel consumption, noise, and air...
Almost everything You want to Know About AP® Poetry Analysis
"The Black Walnut Tree" (Prompt from 2013) Carefully read the following poem by Mary Oliver. Then write a well-organized essay in which you analyze how Oliver conveys the relationship between the tree and family through the use of figurative language...
Pathways to Knowledge The Pathways Model is... a
Pathways to Knowledge™

Ch. 3 - Chemical Reactions

Related Presentations

Recently Viewed Presentations