Chemical Reactions and Significant Figures

Front

What is a chemical reaction?

Back

A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

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.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in g/cm³ or kg/m³.

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is a synthesis reaction?

Back

A type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a decomposition reaction?

Back

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

Front

What is a single replacement reaction?

Back

A reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A reaction where the anions and cations of two different compounds exchange places, forming two new compounds.

Front

What are significant figures?

Back

Digits in a number that contribute to its precision, including all non-zero digits, zeros between significant digits, and trailing zeros in a decimal.