Chemistry Semester 1 Final

Front

What does the law of conservation of energy/mass state?

Back

Energy/Matter is transferred or transformed from one system to another.

Front

What is an open system?

Back

Energy and matter are exchanged freely with the surroundings.

Front

Define endothermic.

Back

Endothermic refers to a process that absorbs heat.

Front

Is this showing an endothermic or an exothermic reaction?

Back

Endothermic.

Front

Describe an atom consisting of protons, neutrons, and electrons with 7 protons, 7 neutrons, and 7 electrons.

Back

This atom has 7 protons, 7 neutrons, and 7 electrons.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a process that releases heat.

Front

What is the difference between an open system and a closed system?

Back

In a closed system, energy is exchanged but matter is not.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.