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Chemistry-Chapter 6

Across
A reaction in which two or more elements react together to form a single compound.
A combustion reaction in which the only products are carbon dioxide and water.
The molecules (or atoms) that make up a substance have space in between them, and they are in constant, random motion. The hotter the substance, the faster the motion.
A reaction in which the only reactant is a compound, and the products are the elements from which the compound is made.
A reaction in which two elements or ions in two different compounds switch places, each becoming part of the other compound.
A change which does not alter the chemical composition of a substance.
A change that alters the chemical composition of a substance.
Down
A combustion reaction in which carbon monoxide and/or elemental carbon are formed in addition to water.
The process by which a chemical reacts with oxygen to form one or more products as well as heat and usually light.
A reaction in which one element or ion in a compound is replaced by a different element or ion.