Bonds
What is the definition of a covalent bond?
A bond that occurs between non-metals.
What is the equation for a combination reaction?
A+B=C
Balance this equation
H6+O3-->H2O
H6+O3-->3H2O
Which is a Chemical Property of a marshmallow?
1. Tasty
2. Fluffy
3. Flammable
Flamable
How many neutrons does Hydrogen have?
0
What is the weakest molecular bond?
Hydrogen Bond
What is the equation for a decomposition reaction?
AB=A+B
Balance this equation
N2+H2-->NH3
N2+3H2-->2NH3
A change in color is an example of a _________ change.
Chemical
What is the symbol for silver?
Ag
What charge is a non-polar covalent bond?
Neutral
True of False
An exothermic reaction absorbs heat
True
Balance this equation
NaCl+F2-->NaF+Cl2
2NaCl+F2-->2NaF+Cl2
What is an example of a physical change?
Answers may vary
How do you find the number of neutrons in an atom.
mass-atomic number=neutrons
Sodium Chloride is a(n) ________ bond.
Ionic
What is the equation for a single replacement reaction?
A+BC=AC+B
Balance this Equation
CH4+2O2-->CO2+H2O
CH4+2O2-->CO2+2H2O
What is an example of a Chemical Change?
Answers may Vary
How many transition metals are there?
38
What structure is a Metallic Bond?
Lattice-like
What is the equation for a Double Replacement Reaction?
AB+CD=AD+CB
Balance this equation
Na+O2-->Na2O
4Na+O2-->2Na2O
How can you observe a physical change?
without changing the composition of the matter
Who created the Periodic Table?
Demitri Mendeleev