Types of Chemical Reactions

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What is a decomposition reaction?

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A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. The general reaction scheme is AB --> A + B.

Tags

NGSS.MS-PS1-1

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What is the definition of a coefficient in a chemical equation?

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A coefficient is a number placed in front of a chemical formula in a chemical equation to indicate the number of molecules or moles of that substance involved in the reaction.

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What is the general formula for a single replacement reaction?

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The general formula for a single replacement reaction is A + CD --> C + AD, where an element A replaces another element C in a compound CD.

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What is the difference between reactants and products in a chemical reaction?

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Reactants are the starting substances in a chemical reaction, while products are the substances formed as a result of the reaction.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

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What is an example of a decomposition reaction?

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An example of a decomposition reaction is the breakdown of water (H2O) into hydrogen (H2) and oxygen (O2) when electricity is passed through it.

Tags

NGSS.MS-PS1-5

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What is the general reaction scheme for a synthesis reaction?

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The general reaction scheme for a synthesis reaction is A + B --> AB, where two or more reactants combine to form a single product.

Tags

NGSS.MS-PS1-1

Front

What is a double replacement reaction?

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A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. The general formula is AB + CD --> AD + CB.

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What is the law of conservation of mass?

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

Tags

NGSS.MS-PS1-5

Front

What is an example of a single replacement reaction?

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An example of a single replacement reaction is when zinc (Zn) reacts with hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen gas (H2).

Tags

NGSS.MS-PS1-5

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What is the role of a catalyst in a chemical reaction?

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A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It lowers the activation energy required for the reaction.

Tags

NGSS.HS-PS1-5