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General chemistry

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General chemistry

Absolute error

Chemistry; General chemistry

The uncertainty in a measurement, expressed with appropriate units. For example, if three replicate weights for an object are 1.00 g, 1.05 g, and 0.95 g, the absolute error can be expressed as ± 0.05 ...

Diatomic molecule

Chemistry; General chemistry

A molecule that contains only two atoms. All of the noninert gases occur as diatomic molecules; e.g. hydrogen, oxygen, nitrogen, fluorine, and chlorine are H2, O2, N2, F2, and Cl2, respectively.

Mega

Chemistry; General chemistry

SI prefix meaning "multiply by 106". For example, 3.2 MJ is 3200000 J.

Starch

Chemistry; General chemistry

A polysaccharide used by plants to stockpile glucose molecules. The most common forms are amylose and amylopectin .

Bronze

Chemistry; General chemistry

A yellow to yellow-brown alloy that contains mostly copper and tin, with small amounts of other metals.

Hydrocarbon

Chemistry; General chemistry

Hydrocarbons are organic compounds that contain only hydrogen and carbon. The simplest hydrocarbons are the alkanes .

Polymerize

Chemistry; General chemistry

To link smaller molecules together to form a larger molecule.

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