Vocab
A notation indicating the elements in a compound and the ratios of the atoms of each element.
What is a chemical formula
An atom or a group of atoms that has a positive or negative charge
What is an ion?
How many atoms of each element are in the compound AgNO3? (Ag is silver)
What is 1 silver, 1 nitrogen, 3 oxygen
Is gasoline polar or non polar?
What is non polar? (If water can't dissolve, it's non polar.)
The science that we will study next year in Ch 2.
What is Biology?
Substances that undergo a chemical change
What is a reactant?
A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared.
What is a polar molecule?
Sugar (glucose) has a chemical formula of C6H12O6. How many atoms of each element is in a sugar molecule?
What are 6 carbon atoms, 12 hydrogen atoms, 6 oxygen atoms.
This molecule is able to dissolve many substances because of its polarity.
What is water?
Daily Double! Wager First!
Make a connection between what you have studied in Module 4 to Algebra I and another strand of your choice but it must be a strong academic connection and not a silly answer otherwise you will lose 200 points - BE CAREFUL!
New substances formed as a result of a chemical change
What is a product?
The force of attraction between molecules of different substances so that they tend to stick together.
What is adhesion?
One of the most common household cleaners is ammonia, which has a chemical formula of NH3. How many atoms are in a molecule of ammonia?
What is a total of 4.
Suppose you were able to count the molecules in a substance. Which would have more molecules, 1 liter of liquid water or 1 liter of ice? Why?
What is the liquid? Why? Molecules in solid water are farther apart that they are in liquid water.
N2+3H2 = 2NH3
What is TRUE.
Numbers that appear before a formula in a chemical equation to show how many atoms or molecules of each reactant or product are involved in the reaction.
What are coefficients?
A force of attraction between atoms or groups of atoms.
What is a chemical bond?
True of False: Water has one of the HIGHEST surface tensions in all of creation.
What is True?
Describe two ways and element can achieve a stable electron configuration.
What is Transferring electrons (ionic bonds) or Sharing electrons (covalent bonds)
Daily Double: Wager first!
In our experiment with balloon, water, oil and styrofoam cup explain how the water reacted and why? Explain how the vegetable oil reacted and why.
A chemical bond in which two atoms share one or more pairs of valence electrons.
What is a covalent bond?
The force of attraction between molecules of the same substance so that they tend to stay together.
What is cohesion?
Calcium carbonate is an ionic substance commonly called “chalk.” If this molecule has one calcium, one carbon, and three oxygen atoms, what is its chemical formula?
What is CaCO3?
True or false: Water molecules are closer together when water is a liquid.
What is true?
What is hold together? Colossians 1:17