Phases of Matter
Chemical Reactions
Periodic Table
Atoms, Ions, Isotopes
Energy Transformations
100

Solid, liquid, and gas.

What are the 3 main phases of matter?

100

This type of chemical reaction occurs when two or more substances combine to form a more complex substance.

what is a synthesis reaction?

100

This type of element, typically found in the middle of the periodic table, is characterized by having properties of both metals and non-metals, such as silicon.

What is metalloids?

100

This part of the atom has a positive charge and is found in the nucleus.

What is a proton?
100

This type of energy is stored in objects due to their position or condition, such as a book resting on a shelf.

What is potential energy?

200

a solid becomes a liquid as particles gain energy and begin to move more freely.

what is melting

200

In this type of reaction, an element displaces another element in a compound, such as when zinc reacts with hydrochloric acid to produce hydrogen gas.

 What is a single displacement reaction?

200

Poor conductors of heat and electricity, and they tend to be brittle rather than malleable or ductile.

What are nonmetals?

200

An atom becomes this when it gains or loses electrons, resulting in a charged particle.

What is an ion?
200

When a moving car's engine burns fuel, it converts chemical energy into this type of energy, which powers the car’s motion.

What is kinetic energy?
300

This high energy state of matter is found in stars, lightning, and neon signs.

what is plasma?

300

When two ionic compounds react in aqueous solution to form a precipitate, gas, or water, this type of reaction occurs.

What is a double displacement reaction?

300

Found on the left side and in the center, extending from groups 1 through 12, and some elements in the lower part of groups 13 to 16

What are metals?

300

These are atoms of the same element that have the same number of protons but different numbers of neutrons, leading to a different atomic mass.

What are isotopes?
300

This type of energy transformation occurs when a light bulb converts electrical energy into this type of energy, which helps you see.

What is light energy?

400

A gas changes directly into a solid without passing through the liquid phase.

What is deposition?

400

This law, which is fundamental to understanding chemical reactions, states that matter cannot be created or destroyed in an isolated system.

What is the law of conservation mass?

400

This group of elements, located in Group 18 of the periodic table, is known for being chemically inert and includes elements like helium and neon.

What are noble gases?


400

This negatively charged particle orbits the nucleus of an atom and has negligible mass compared to protons and neutrons.

What is an electron

400

In a nuclear power plant, atoms undergo this type of reaction to release energy, which is then transformed into electrical energy.

What is a nuclear fission?

500

A liquid gains enough energy to turn into a gas.

What is vaporization?

500

This type of reaction involves the breakdown of a compound into simpler substances, often due to the application of heat.

What is a decomposition reaction?


500

This element, symbolized by O, is essential for breathing and combustion.

What is oxygen?

500

When an atom loses an electron, it becomes this type of ion, carrying a positive charge.

What is a cation?

500

This energy transformation happens in a hydroelectric power plant when flowing water is used to generate electricity.

What is mechanical energy to electrical energy?