Chemistry - reactions & balancing

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products) with different properties.

Front

What is a precipitate?

Back

A solid that forms when two liquids are mixed together in a chemical reaction.

Front

What are reactants in a chemical equation?

Back

The starting substances that undergo a chemical change to form products.

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What are products in a chemical equation?

Back

The substances that are formed as a result of a chemical reaction.

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

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What is malleability?

Back

The ability of a metal to be hammered or rolled into thin sheets.

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What is ductility?

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The ability of a metal to be drawn into wires.

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What is the difference between a physical change and a chemical change?

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A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical reaction?

Back

Rusting of iron, where iron reacts with oxygen to form iron oxide.