Facts Part 1
Facts Part 2
Ions
Covalent Bonds
Methane
Water
Matins
100
These are the substances that exist before a chemical change
Reactants
100
These are the new substances formed as a result of a chemical change
Products
100
What is an ion?
An atoms or group of atoms that has a positive or negative charge
(different number of electrons compared to protons)
100
What is a covalent bond?
A chemical bond that forms because of shared electrons
100
In the following chemical formula, which number is the subscript?
3CH4
4
100
As opposed to a molecule that is overall neutrally charged, water molecules have both slight negative and slight positive charges. This makes water what type of molecule?
Polar molecule
100
This was the word of the week from Matins
Sanctification
200
What are homonuclear diatomic molecules?
Two atoms of the same element bonded together (example: O2)
200
This is the number listed before an atom or molecule in a chemical equation (indicates quantity)
Coefficient
200
Are cations positive or negative?
Positive
(Think: ca+ion)
200
What holds atoms together in a covalent bond?
Shared electrons travel around both nuclei
200
In the following chemical formula, which number is the coefficient?
3CH4
3
200
This is the attractive force between water molecules (not atoms)
Hydrogen bonds
200
This person taught most of the chapel messages on the book of James
Mr. Bisulca
300
Atoms are most stable when this is full.
Valence shell/
Outermost electron shell/
Highest energy level electron shell
300
How does forming or breaking chemical bonds affect the number of protons in an atom?
The number of protons does not change
300
Are anions position of negative?
Negative
300
What kind of bond is represented in this structural formula?
Triple covalent bond
300
In the following chemical formula, how many carbon atoms are represented?
3CH4
3
300
What feature of water's chemical structure causes it to have a relatively high boiling point?
Hydrogen bonds
300
Based on this week's catechism question, what does God require in the second commandment?
That we avoid all idolatry and do not worship God improperly
400
This is a force of attraction between atoms or a group of atoms due to the sharing or transferring of electrons
Chemical bond
400
What is the name for this kind of diagram?
Electron dot diagram
400
In ionic bonds, one atom ____ its electron(s)
Transfers, gives, loses, receives, gains
400
This is a covalent bond where one atom has a stronger pull on the shared electron(s) than the other
Polar covalent bond
400
In the following chemical formula, how many hydrogen atoms are represented?
3CH4
12
400
This property of water causes water molecules to attract and stick to other water molecules
Cohesion
400
This person was the first woman to earn a medical degree (from Geneva college)
Elizabeth Blackwell
500
What is the name for this type of atomic model?
Bohr model or planetary model
500
Fill in the blank in this chemical equation:
_NO2 ---> 2NO + O2
2
500
What holds atoms together in an ionic bond?
Oppositely charged ions are attracted to one another
500
What types of elements usually form covalent bonds?
Non-metals
500
What kind of covalent bonds are shown in this model of methane?
Single covalent bonds
500
This property of water causes water molecules to attract and stick to other substances
Adhesion
500
This person is credited with being the first person to use general anesthesia
Dr. Horace Wells