Naming Compounds and Writing Formulas
Compounds made of only two elements.
What are binary compounds?
A covalently bonded group of atoms that has a positive or negative charge and acts as a unit.
What are polyatomic ions?
This is a chemical reaction in which two or more substances react to form a single compound.
What is a synthesis reaction?
This is a chemical reaction in which a compound breaks down into two or more simpler substances.
What is a decomposition reaction?
All chemical reactions involve this.
What is energy?
This is how energy is involved in chemical reactions.
What is either absorbed or released?
This is what the formula of an ionic compound describes.
What is the ratio of the ions in a compound?
This is the name of the binary compound formed from potassium and iodine.
What is potassium iodide?
Describe what happens in the process called water electrolysis.
What is when electricity passes through water, causing it to decompose into hydrogen gas and oxygen gas?
Some other examples of decomposition reactions.
What are: the digestive process, opening a can of soda, cement factories, air bags in cars?
His name is Amedeo Avogardro.
Who is the Italian chemist who came up with a way to describe large amounts of very small particles?
They use a mole.
What do chemists use to count atoms, ions, or molecules?
This is what you need to know to write the formula of an ionic compound.
The symbols of the elements in the compound and the charges of their ions.
The name of this ionic compound: MgCl2
A chemical reaction in which one element takes the place of another element in a compound.
What is single replacement reaction?
What is a chemical reaction in which two compounds exchange positive ions and form new compounds?
Amount of a substance that contains approximately 6.02 x 1023 particles of the substance.
What is a mole (or Avogadro's number)?
A measure of how strong the chemical bond is.
What is bond energy?
The formula for Calcium Chloride
What is CaCl2?
The definition of molecular compounds.
What are compounds that are formed when atoms share electrons in covalent bonds?
This a chemical reaction in which a substance reacts rapidly with oxygen.
What is a combustion reaction?
Heat and light are two products.
What is often produced in a combustion reaction?
What is a chemical reaction that absorbs energy from its surroundings?
A 19th century physicist. Energy is measured in units names joules (named after him).
Who is James Joules and why is he important?
The name of the compound: PCl5
What is Phosphorous Pentachloride?
This is the formula for dihydrogen monoxide.
Examples are: burning marshmallows over a campfire and the Hindenburg explosion.
What are some examples of a combustion reaction?
Experiment 5.1 used electrolysis to separate water into hydrogen and oxygen gas to demonstrate this type of chemical reaction.
What is a decomposition reaction?
A chemical reaction that releases energy to its surroundings.
What is an exothermic reaction?
Energy stored in chemical bonds.
What is chemical energy?