The sharing of valence electrons results in what type of bond?
Covalent Bonding
100
Noble Gases in Group 18 are the most stable because:
they have a full outer orbital/shell
100
The mass of an atom can be calculated by adding the number of _____________ and the number of ____________.
Neutrons + Protons (both are inside the nucleus)
100
Use the Law of Conservation of Mass/Matter to explain the relationship between reactants and products.
The number of atoms going into a reaction (reactants) must be equal to the number of atoms coming out of a reaction (products).
100
On which axis if a graph is the independent variable found?
x-axis
200
Identify at least one property of carbon that explains why carbon is so abundant in our world?
1) Four valence electrons= ability to make four bonds with other carbons or other elements.
2) Ability to form single, double, or triple bonds
200
How many valence electrons do the most reactive elements tend to have? (Looking for two numbers)
1 or 7 valence electrons
200
Name the three subatomic particles of an atom and the charge associated with each one.
proton +
electron -
neutron no charge
200
Two products that result from a complete combustion reaction are:
Carbon dioxide and water
200
When performing research, especially on the Web, one must be cautious in selecting their sources. Which two of the following sites are typically considered most credible and usually contain little-to-no bias?
a) .com b) .edu c) .org d) .gov
.edu and .gov
300
The type of bonding that results in charged atoms is:
Ionic bonding
300
What information can be gained for every element in the same Group on the Period Table?
Number of valence electrons
300
Hydrocarbons are a type of polymer containing only what two elements?
hydrogen and carbon
300
Name the toxic, colorless, odorless gas produced from the incomplete combustion of hydrocarbons.
carbon monoxide
300
Having constants in place during experimentation increases the ______________ of the results/data.
Validity
400
What kind of bonding occurs BETWEEN individual water molecules?
Hydrogen bonding
400
The period in which an element is located on the Periodic Table determines the number of ___________ it has.
Total number of orbitals/shells
400
Strong bases are compounds that have a pH range of_______, while strong acids have a pH range of _________.
strong bases: 10-14
strong acids: 0-4
400
A reaction between an acid and a base is called:
Neutralization reaction
400
The experimental design for an experiment must be___________.
Replicable
500
When monomers bond together, they form something bigger called:
a polymer
* this occurs through the process of polymerization
500
Increasing by one from one element to the next, the Periodic Table is arranged according to:
atomic number (number of protons in an atom of an element)
500
An acid can be defined as a compound that contains which of the following:
a) hydroxide ions
b) hydronium ions
hydronium (H+)
500
What is the term used to describe a chemical reaction in which heat is produced/given off from the reaction?
exothermic
500
True or False:
Every experiment must have a control group