Chemical Interactions Investigation 1

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances (reactants) undergo a transformation to form new substances (products), often involving changes in energy and properties.

Front

What indicates that a chemical reaction has occurred?

Back

Signs of a chemical reaction include color change, gas production, temperature change, and the formation of a precipitate.

Front

What is a substance in chemistry?

Back

A substance is a type of matter defined by a unique particle, which can be an element or a compound.

Front

What are the characteristics of Epsom Salts crystals?

Back

Epsom Salts crystals are long and narrow, resembling small rectangular sticks that may stick together.

Front

How did Mendeleyev's gaps in the periodic table help scientists?

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The gaps predicted the characteristics of undiscovered elements, guiding scientists in their search for new elements.

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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 or appearance of a substance without changing its composition, while a chemical change results in the formation of new substances.

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What is an example of a chemical reaction?

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An example of a chemical reaction is the combustion of wood, where wood reacts with oxygen to produce ash, carbon dioxide, and heat.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is a reactant?

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A reactant is a substance that undergoes a chemical change in a reaction.

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What is a product in a chemical reaction?

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A product is a substance that is formed as a result of a chemical reaction.