Density
States of Matter
Atoms and Molecules
Bohr Models
Balancing Equations
100
The formula for density.
What is d=m/v?
100
The type of matter that is easily compressed.
What is a gas?
100
A substance made up two or more elements, chemically bonded together.
What is a compound?
100
The number of valence electrons in the first energy level.
What is 2?
100
Equation #1, balanced: Ag2S yields Ag + S8
What is 8 Ag2S yields 16 Ag + S8?
200
The density of an object that has a mass of 25g and a volume of 50mL.
What is 0.5g/mL? (must give units to be correct)
200
The process by which solids become liquids.
What is melting?
200
The number of atoms, total, in 2 molecules of H2O?
What is 6?
200
The number of valence electrons in the second energy level of a Bohr model.
What is 8?
200
Balance the following equation: NaClO3 yields NaCl + O2
What is 2 NaClO3 yields 2 NaCl + 3 O2
300
The object that has greater density, given that they have the same mass (25g), but different volumes. A has a volume of 50mL and B has a volume of 25mL.)
What is object “B”?
300
The picture (diagram “B”) which best shows the process of freezing
What is B?
300
The number of atoms, total in the products of the following equation; C6H12O6 + 6O2 6H2O + 6CO2 .
What is 36?
300
The correct Bohr Model for Oxygen. (Draw one!) Oxygen has an atomic number of 8 and a atomic mass number of 15.999) Once drawn, use Diagram E to check.
What is Diagram E??
300
C3H8 + O2 yields CO2 + H2O
What is C3H8 + 5 O2 yields 3 CO2 + 4 H20
400
The density of a cube that measures l (5cm) x w (5cm) and h (5cm) and has a mass of 100g.
What is 0.8g/cm?
400
The picture (Diagram “G”) that best shows the process of melting.
What is C?
400
Atoms are to __________ as molecules are to ___________
What are elements and compounds?
400
The correct Bohr model for Sodium. (Draw one!) Sodium has an atomic number 11 of and an atomic mass of 22.989) Once drawn, use Diagram F to check.
What is Diagram F?
400
HCl + CaCO3 yields CaCl2 + H2O + CO2
What is 2 HCl + CaCO3 yields CaCl2 + H2O + CO2
500
The density of the object in Diagram “A”, given a mass of 6 grams.
What is 0.6g/cm3?
500
The picture (diagram “C”) that best shows what happens when we put an heat pack on an injured body part.
What is A?
500
These items, in order of “size”; chemical formula, chemical equation, chemical symbol, reactants.
What is chemical symbol, chemical formula, reactants, and chemical equation?
500
The quick rhyme that you come up with to describe a Bohr model. You have 1 minute….
What is…(something that rhymes and gives at least 1 fact about Bohr models)
500
BaCl2 + H2SO4 yields BaSO4 + HCl
What is BaCl2 + H2SO4 yields BaSO4 + 2 HCl