Match each word to the sentence where it best fits.
| balanced chemical equation | | chemical equation | | chemical reaction | | insoluble | | law of conservation of matter | | product | | reactant | | soluble | | unbalanced chemical equation | |
- When a chemical equation satisfies the law of conservation of mass, it is called a(n) ____________ .
- The ___________ is the starting material of a chemical reaction.
- The expression that describes the changes that happen in a chemical reaction is the _____________ .
- The substance that is created or released in a chemical reaction is called the ______________ .
- The ___________ states that the mass of the starting materials must equal the mass of the materials produced by the reaction.
- A process that creates chemical changes is called a(n) ______________ .
- If a substance is able to dissolve in water, it is considered ___________ .
- A chemical equation that does not satisfy the law of conservation of mass is considered to be a(n) ______________ .
- If a substance is unable to dissolve in water, it is considered ___________ .
| combustion | | decomposition | | double replacement | | hydrocarbon | | polymer | | polymerization | | single replacement | | synthesis | |
- The reaction in which a single substance breaks apart to make two or more new substances is considered a(n) _______________ reaction.
- AB + DX → AX + DB, this reaction is considered a(n) _____reaction.
| | - A reaction in which a single element replaces another element in a compound is called a(n) ____________ reaction.
- A long-chain of molecules that is formed by connecting small repeating units with covalent bonds is called a(n) _________ .
- A molecule that is only made up of carbon and hydrogen atoms is called a(n) __________ .
- A(n) ___________ reaction assembles a polymer through repeated additions of smaller molecular fragments.
- A chemical reaction that involves the rapid combination of a fuel with oxygen is called a(n) ____________ reaction .
- __________ reactions include reactions which combine two or more compounds to produce a third compound.
 What is a chemical reaction?
- Describe in your own words what a chemical reaction is.
- Give three examples of chemical reactions.
- A chemical equation is different than a chemical reaction.
- Describe what a chemical equation is in your own words.
- Give an example of a chemical equation.
- Identify the the products and reactants.
- A student writes the following sentence to describe the chemical reaction below. What is wrong with the student's sentence and what would you change to make it correct?
4Fe(s) + 3O2(g) → 2Fe2O3(s)
"Four grams of iron react with three grams of oxygen to produce 2 grams of iron oxide."
- From the list below, choose which of the chemical equations conserve mass.
- N2(g) + H2(g) → NH3(g)
- H2(g) + Cl2(g) → 2HCl(g)
- 2N2H4(g) + N2O4(g) → 2N2(g) + 4H2O(g)
- Write a sentence that has the same meaning as the following chemical equation.
2CH3OH + 3O2 → 2CO2 + 4H2O
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