The Metric System/ Density
Molecular Geometry
Law Of Conservation of Mass
Naming compounds
Bonding
Rebus Brain Puzzles
100
Describe the two ways you can measure volume of a solid object?
Measure volume using a ruler and water displacement.
100
If a molecule has a central atom bonded to 3 other atoms and has no lone pairs, what general shape will the molecule have?
trigonal planar
100
What are the small numbers in a chemical formula that you can never change when balancing an equation?
Subscripts
100
What prefix is used in a covalent compound's name to indicate there are exactly four atoms of an element?
Tetra-
100
What type of chemical bond involves the complete transfer of electrons from one atom to another?
Ionic bond
100
Hot under the collar
100
is the density of a metal block with a mass of 20g and a volume of 5mL?
4 g/mL
100
What is the shape of a molecule like H2O that has a central atom with 2 bonding domains and 2 lone pairs?
Bent
100
What are the starting substances found on the left side of a chemical equation called?
Reactants
100
What is used in the name of a transition metal compound to indicate the specific charge of the cation?
A Roman numeral
100
What type of bond involves the sharing of electrons and typically occurs between two nonmetals?
Covalent bond
100
Blessing in disguise
100
What will happen to a wooden block with a density of 0.8 g/mL when placed in water?
It will float
100
What is the expected bond angle for a perfectly symmetrical tetrahedral molecule?
109.5 degrees
100
In what type of system might the total mass appear to decrease because a produced gas escapes into the air?
An open system
100
What is the correct name for the covalent compound P2O
Diphosphorus pentoxide
100
What type of molecule is created by the unequal sharing of electrons, resulting in partial positive and negative charges?
Polar molecule
100
Blood is thicker than water
100
What experimental method is used to find the volume of an irregularly shaped object?
Water displacement method
100
What is the 3-D shape of a molecule like CH4 that has 4 bonding domains and 0 nonbonding domains?
Tetrahedral
100
What coefficient must be placed in front of H2O to balance the oxygen atoms in the equation H2 + O2 -> H2O?
2
100
What is the name of the common polyatomic ion SO4 with a -2 charge?
Sulfate
100
Polar or non polar?
non polar
100
Burning the candle at both ends
100
What is the numerical value of the metric prefix "milli-"?
0.001 (or one-thousandth)
100
What theory predicts the 3-D shape of molecules based on the repulsion of valence electron pairs?
Bonus points if you know what it stands for
VSEPR theory
100
A student melts a 150-gram ice cube inside a sealed glass jar. What will the mass of the liquid water be?
150 grams
100
In the compound Iron(III) oxide, what does the Roman numeral III represent?
The +3 charge on the Iron ion
100
polar or non polar
Polar
100
Balanced diet
100
What is the base metric unit used to measure mass?
Gram
100
What 2D diagram is drawn to identify bonding and nonbonding electron pairs?
Lewis structure (or Lewis dot diagram)
100
Who is the chemist known for his experiments proving the Law of Conservation of Mass?
Antoine Lavoisier
100
What suffix is added to the root name of the nonmetal in a binary ionic compound?
-ide (e.g., chloride, oxide)
100
Another mystery substance has a very low melting point, is a gas at room temperature, and never conducts electricity. What type of bonding does it likely have?
Covalent bonding.
100
split pea soup