Science Classroom Connection

Students are to continue practicing writing skeleton equations in words. Another reinforcement can be found on page 314, #105.

Students will reinforce predicting and balancing chemical equations AND THEN THEY NEED TO START WRITING THE SKELETON EQUATIONS INTO WORDS. Example: 2NaOH + (1)H2SO4 → (1)Na2SO4 + 2H2O. In words, this is expressed as: Two molecules of sodium hydroxide combine with one molecule of sulfuric acid ( or one molecule of hydrogen sulfate) to yield one molecule of sodium sulfate and two molecules of water.

Note that instead of using the word “combine”, you can also use “react” or “join”. Do not use the word “plus” to describe “+ sign” since you are not adding numbers; you are carrying out a chemical reaction. Furthermore, use the conjunction “and” to represent the “+ sign” in the products since it means “also produced” in a reaction.

Moreover, other terms besides “to yield” can be used to represent the arrow such as “to make”, “to produce”, or “to result in”.

Students will do #’s: 64, 65, & 66 on page 312 as practice on writing word equations.

Student will pair up to analyze and synthesize the five chemical equations that were assigned on the test on March 1st. Furthermore, they will practice their writing skills in writing formally the names of the chemical formulas whereby their spelling skills will be essential to the task at hand since a minor variation in the spelling of a term of a substance will result in naming a totally different substance such as sulfate is SO4 while sulfite is SO3. Think about it!

Each student will be assigned and evaluated upon the process of predicting the product(s) and balancing five chemical equations, similar to our classwork that has been done in the past of several days.

Students need to continue practicing on “Predicting Products and Balancing Chemical Equations” to prepare for Thursday’s Test. Furthermore, students can do #110 and #122 on page 314  for further reinforcement.