Chemical Reactions

What is a synthesis reaction?

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is an example of a decomposition reaction?

• Formation of sodium chloride from sodium and chlorine gas.

• Decomposition of hydrogen peroxide into water and oxygen gas.

• Magnesium replacing copper in copper (II) nitrate.

• Reaction between potassium iodide and lead (II) nitrate.

Tags

NGSS.HS-PS1-7

In a single-replacement reaction, what occurs?

(a)  

• One element replaces another in a compound.
• Two elements combine to form a new compound.

• A compound breaks down into simpler substances.

• Ions are exchanged between two compounds.

What characterizes a double-replacement reaction?

• Exchange of ions between two compounds to form new compounds.

• Formation of a single new substance from multiple reactants.

• Breaking down of a compound into simpler substances.

• Reaction of a substance with oxygen to release energy.

What are the products of a combustion reaction involving hydrocarbons?

• Carbon dioxide and water.

• Sodium chloride and water.

• Lead iodide and potassium nitrate.

• Magnesium nitrate and copper.