Matter
What are the two classifications of compounds?
Ionic and Covalent
Groups 3-12 on the periodic table are:
A.) Non-metal
B.) Alkali Metals
C.) Transition Metals
D.) Halogens
C.) Transition Metals
Which process is a chemical change?
A.) Chopping Vegetables
B.) Melting Butter
C.) Burning Wood
D.) Boiling Water
C.) Burning Wood
On the pH scale, what are the numbers we consider to be acidic?
0-6
What are the two classifications of mixtures?
Heterogeneous and Homogeneous
The 1st shell in the Bohr Model holds 2 electrons, what is the maximum number of electrons the 2nd shell can hold?
8
What type of chemical reaction is the following?
(A + BC -> B + AC)
Single Replacement
What is the total range of the pH scale?
0-14
On the Moon, an object's mass will be:
A.) Zero
B.) The same as on Earth
C.) Less than on Earth
D.) Greater than on Earth
C.) The same as on Earth
How many valence electrons are found in group 13?
3
What type of chemical reaction is the following?
(A + B -> AB)
Synthesis
Carbon dioxide gas and sugar mix with water to create a solution of soda. List the solvent in this example.
Water
When using the water displacement method, if the water level in a graduated cylinder rises from 30 mL to 50 mL after an object is submerged, what is the volume of the object?
50-30 = 20 mL
What is the electrical charge of the nucleus of an atom?
Gasoline is burned in a car engine to release energy. This process is called combustion. Is combustion an exothermic or endothermic reaction?
Exothermic
___________________ shows the solubility limit of the substance at each temperature. Points on the line represent a saturated solution, meaning no more solute can dissolve at that temperature.
Solubility Curve
A liquid has a volume of 50 mL and a mass of 40 grams. Find the density of the liquid.
40/50 = 0.8 mL/G
What rule is it when there are exactly 8 valence electrons in the outer shell?
Octet Rule
Balance the following:
___C6H12O6 + __O2 -> __CO2 + __H20
___C6H12O6 + 6O2 -> 6CO2 + 6H20
A point at which no more solute can dissolve in the solvent at a given temperature.
Saturation