Atomic Structure
This particle has a positive charge and is found in the nucleus.
Proton
The first energy level can hold this many electrons.
2
This type of bond forms between a metal and a nonmetal.
Ionic bonding
Name one factor that speeds up a reaction.
Temperature
Concentration
Surface area
Catalyst
This variable represents heat energy.
Q
What is the formula for heat?
Q = m × c × ΔT
This tells you how many protons are in an atom.
Atomic Number
The second energy level can hold this many electrons.
8
This type of bond involves sharing electrons.
Covalent bond
This substance speeds up a reaction but is not used up.
Catalyst
What does ΔT stand for?
Change in temperature
What is the formula for percent composition?
(part ÷ whole) × 100
How do you find the number of neutrons?
Atomic mass - Atomic Number = Neutrons
This is the lowest energy arrangement of electrons.
Ground state
How many pairs of electrons are shared in a triple bond?
3
What must be equal on both sides of a balanced equation?
Atoms
Heat flows from ___ to ___.
Hot to cold
In N₂ + 3H₂ → 2NH₃, how many moles of H₂ are needed for 10 mol NH₃?
15 moles
An atom has 26 protons. How many electrons does it have if it is neutral?
26 electrons
This happens when an electron moves to a higher energy level.
Excited State
This type of molecule has uneven sharing of electrons.
Assymetrical
If energy is on the right side, the reaction is this type.
Exothermic
When water cools, heat is positive or negative?
Negative
What is the formula for heat of vaporization?
q = m × Hᵥ
Where are electrons located on the atom AND what is the key term for the location of them?
Which configuration shows an excited lithium atom:
2-1 or 2-2?
2-2
When an atom gains an electron, it becomes this type of ion.
Negative ion
On a graph, equilibrium is reached when the line looks like this.
A. Flat
B. Curved
C. Pointy
Flat
This measures disorder in a system.
Entropy
What element is always found in organic compounds?
Carbon