Show:
Atomic Concepts
Periodic Table
Moles/Stoichiometry
Chemical Bonding
Physical Behavior of Matter/Gas Laws
100
A particle with a positively charged nucleus surrounded by negatively charged electrons
What is the atom?
100
This Russian chemist is known as the “Father of the Periodic Table.”
Who is Dmitri Mendeleev?
100
The number of hydrogen atoms in ammonium sulfate (NH4)2SO4.
What is 8?
100
This atomic particle is responsible for chemical bonding.
What is an electron?
100
The three common states of matter
What are solid, liquid and gas?
200
A positively charged particle found in the nucleus of an atom.
What is a proton?
200
Electronegativity trends an increase in these two directions in the periodic table.
What are right and up?
200
According to the following balanced equation CH4 + 2 O2 → CO2 + 2 H2O , this is the number of moles of H2O produced if you combust 1 mole of CH4.
What is two (2) moles?
200
The type of bonding seen in sodium chloride
What is ionic?
200
These are liquid elements at room temperature.
What are bromine and mercury?
300
They are variants of a particular chemical element with the same number of protons but different number of neutrons.
What are isotopes?
300
This element’s Latin name is Natrium.
What is sodium?
300
In the electrolysis of two moles of water, how many moles of H2 are formed?
What are two moles of H2?
300
A single bond contains how many sigma bonds?
What is one sigma bond.
300
This is a measure of force per unit area.
What is pressure?
400
An atom will emit this when an electron moves from a higher energy level to a lower energy level.
What is electromagnetic radiation?
400
This group of elements' outermost shells contain 8 electrons.
What are the noble gases?
400
The molar mass for H2 gas
What is 2?
400
Bonds consisting of a shared pair of electrons.
What are covalent bonds?
400
This is the temperature scale used when working with the ideal gas laws.
What is kelvin?
500
According the the quantum mechanical model of the atom, this is the region of space with the greatest probability of finding an electron.
What is an orbital?
500
It is the symbol of the element “antimony”.
What is Sb?
500
The number of moles of H2 needed to balance the reaction: ?O2 + C2H4 ---> 2CO2 + 2H2O
What is three?
500
Nitrogen has a very short, strong covalent bond between two N atoms which involves this number of electrons.
What is six?
500
The conditions of temperature and pressure under which carbon dioxide gas behaves most like an ideal gas.
What are high temperature and low pressure?