Counting Atoms, Heat transfer, and Ph/CH changes Review

Front

What type of heat transfer takes place during Sun Bathing?

Back

Radiation

Front

What is the main difference between a chemical change and a physical change?

Back

Chemical changes the substance's identity; physical does not.

Front

A change where one or more new substances are created.

Back

Chemical Change

Front

Which chemical formula correctly displays 1 atom of nickel and 2 atoms of Fluorine?

Back

NiF2

Front

How many aluminum atoms are found in Al2O3?

Back

2

Front

What is the definition of a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

What is an example of a chemical change?

Back

Burning wood, which creates ash and smoke.

Front

What is the definition of an atom?

Back

The smallest unit of a chemical element, consisting of protons, neutrons, and electrons.

Front

What is the formula for calculating the number of atoms in a compound?

Back

Count the subscripts in the chemical formula.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).