Math Mystery Box
Naming Chemical Compounds
General Chemistry
The Periodic Table
Element Jokes
100
For the linear equation below, how much does the graph "go up or down" every time I move one to the right?
b = -10-0.25t
-0.25
100
This compound is used in table salt and helps prevent dehydration by balancing fluids in your body. Its formula is NaCl.
1) Is it a molecular or ionic compound?
2) What is its name?
1) Ionic (contains a metal!)
2) Sodium Chloride
100
This gas makes up approximately 75% of our atmosphere.
Nitrogen gas
100
What is the name of the group on the periodic table of elements which ALMOST has a full outer shell of electrons, but is missing 1?
Halogens
100
Bromine and Helium are two masculine elements. What is the other manly element?
Manganese
200
Name all of the perfect squares (square numbers) between 50 and 150.
64, 81, 100, 121, 144
200
This yellowish-brown gas is a major component of air pollution and is produced by car engines. Its formula is NO₂.
1) Is it a molecular or ionic compound?
2) What is its name?
1) Molecular (no metals!)
2) Nitrogen Dioxide
200
I'm an atom with 19 protons, 10 neutrons and 23 electrons.
1) What element am I?
2) What is my ionic charge?
1) What element am I? Potassium (K)
2) What is my ionic charge? -4
200
What is the name of the group on the table would give away/transfer 2 valence electrons when it forms an ionic bond?
Alkali Earth Metals
200
Which element is most likely to strike someone down with a bolt of lightning?
Thorium
300
I'm a mystery number. When you divide me by 7, and add 15, you get 22. What number am I?
49
300
This poisonous gas smells like rotten eggs and is sometimes released from volcanoes. Its formula is H₂S.
1) Is it a molecular or ionic compound?
2) What is its name?
1) Molecular (no metals!)
2) Dihydrogen Sulfide
300
I'm an atom with 25 protons, 25 neutrons and 24 electrons.
1) What element am I?
2) What is my ionic charge?
1) What element am I? Manganese (Mn)
2) What is my ionic charge? +1
300
Name all 7 elements that are diatomic (they form pairs with each other).
Br
I
N
Cl
H
O
F
300
Which two elements are most likely to bring you to school?
Carbon and Vanadium
400
To sign up for Elite Demko Gym, you have to pay 85$ to sign up, and 30$ each month.
Write a linear equation relating the cost ($) you pay and the number of months that you go to the gym.
c = 85 + 30m
400
This metal is often used in wiring because it conducts electricity very well. Its formula is Cu₂S.
What is its name?
Copper Sulfide
400
I'm an atom with 9 protons, 9 neutrons and 9 electrons.
1) What element am I?
2) What is my ionic charge?
1) 1) What element am I? Fluorine (F)
2) What is my ionic charge? 0 (equal # of protons and electrons!)
400
I'm a metalloid that is one of the most abundant elements on the Earth. I'm used to make computer chips, and big businesses are built around me!
Which element am I?
Silicon (Si)
400
Which element can you never have an entire piece of?
Hafnium
500
Name all prime numbers between 30 and 50.
31, 37, 41, 43, 47
500
What is the chemical formula for magnesium iodide?
MgI_2
500
Name as many elements as you can that are named after planets in our solar system.
Mercury
Uranium
Neptunium
Plutonium
500
Which element on the periodic table forms groups of 8 with itself?
Sulfur!
500
What is the coolest element?
Radium