Chemical Bonds
Bonds formed between polar molecules that have hydrogen atoms that have a partial positive charge that is attracted to a negative charge of a nearby atom.
What is a hydrogen bond?
Protons and neutrons fit in here.
What is a nucleus?
This is when two different solutions combine into one.
What is a combination reaction?
This equation is balanced. 2O + O = O3
True
Melting ice is an example of this.
What is a physical change?
2 electrons shared between two atoms that creates a bond.
What is a covalent bond?
Look at the atomic number in the top left to find it.
How do you calculate the electrons and the protons when looking at the periodic table?
When a substance breaks down into two new substances.
What is a decomposition reaction?
This equation is balanced: N3 + 3O2 = O2
False
Burning wood in a campfire is an example of this.
What is a chemical change?
A negative ion that attracts a positive atom ion, between a metal and a non metal.
What is an ionic bond?
Subtract the atomic number from the atomic mass to find this.
How do you calculate the neutrons when looking at the periodic table?
When the positive and negative ions of two ionic compounds exchange places to form 2 new compounds.
What is a double replacement reaction?
This equation is balanced. 4H + 3OH = 5H + 03
True
When boiling water turns to steam.
What is a physical change?
A bond formed between a positively charged ion and valence electrons that it shares with other ions of that metal. Its a bond between two transition metals.
What is a metallic bond?
This particle is positive, this particle has no charge, and this one is negatively charged.
What is is the charge of protons, neutrons, and electrons?
When a similar element replaces another element in a compound.
These are the two types of property changes.
What are physical and chemical changes?
The force of attraction formed between two polar atoms.
What is a polar bond?
How is the amount of valence electrons and orbitals found?
When a substance reacts with oxygen gas releasing energy in the form of light and heat.
What is a combustion reaction?
When a bike rusts.
What is a chemical change?