Chemistry Exam Fall 2024

Front

What is the chemical symbol for sodium?

Back

Na

Front

What is a homogeneous mixture?

Back

A mixture with a uniform composition.

Front

Which separation technique is commonly used in laboratories to separate pigments in plants?

Back

Chromatography.

Front

What type of chemical reaction involves a single compound breaking down into two or more products?

Back

Decomposition.

Front

What is the fundamental concept of Dalton's Atomic Theory regarding the composition of matter?

Back

All matter is composed of extremely small particles called atoms.

Front

What is the chemical symbol for potassium?

Back

K

Front

What is a heterogeneous mixture?

Back

A mixture with visible different parts.

Front

What is distillation used for?

Back

To separate components of a mixture based on differences in boiling points.

Front

What type of chemical reaction involves two or more substances combining to form a new compound?

Back

Synthesis.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.