CHEMICAL REACTIONS

Front

What is the number placed below an element’s symbol in a chemical formula called?

Back

subscript

Front

The substances listed on the left side of a chemical equation are the

Back

reactants

Tags

NGSS.MS-PS1-1

Front

Which two processes could be considered opposites?

• decomposition and double replacement
• double replacement and substitution
• substitution and synthesis
• synthesis and decomposition

Back

synthesis and decomposition

Front

In a chemical reaction, a hydrocarbon compound reacts with the diatomic element oxygen. What type of reaction is this?

Back

combustion

Front

Type of reaction where two or more simple substances combine to form a more complex substance.

Back

double replacement reaction

Front

What evidence would tell that a chemical reaction has taken place?

Back

All of these: release of light and heat, formation of gas, formation of precipitate.

Tags

NGSS.MS-PS1-2

Front

In this reaction, a more active element replaces active element in the compound.

Back

single replacement reaction

Front

Is the following reaction a synthesis, decomposition, single replacement or combustion reaction? C₁₀H₈ + O₂ → CO₂ + H₂O

Back

combustion

Front

What would the reverse of decomposition reaction be called?

Back

synthesis reaction

Front

What type of reaction is FeS + HCl → FeCl₂ + H₂S?

Back

double replacement