Chemical Reactions & Forces

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides, indicating that mass is conserved.

Tags

NGSS.MS-PS1-5

Front

What type of reaction is represented by the equation: @@2H_2 + O_2 ightarrow 2H_2O@@?

Back

Synthesis reaction, where two or more reactants combine to form a single product.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is friction?

Back

A force that opposes the relative motion between two surfaces in contact.

Tags

NGSS.MS-PS3-5

Front

What is Newton's first law of motion?

Back

An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an external force.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single displacement reaction?

Back

A reaction where one element replaces another in a compound, resulting in a new element and a new compound.

Front

What is a double displacement reaction?

Back

A reaction where two compounds exchange ions or bonds to form two new compounds.

Tags

NGSS.MS-PS1-5

Front

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

Back

A substance that increases the rate of a reaction without being consumed in the process.