Matter and Chemical Change(1.0-2.0) (copy)

Anything that has mass and takes up space.

Does not change what it is made of, only the physical characteristics.

Formation of new materials.

The basic unit of matter, consisting of subatomic particles.

The number of protons in the nucleus of an atom.

The mass of one atom of an element, calculated by adding protons and neutrons.

The most reactive metals.

The second most reactive group of metals.

The most reactive non-metals.

The most stable and unreactive elements.

A bond formed between a metal and a non-metal.

how many atoms of each element in a compound.

Metal + Non-metal

• SOLID at room temperature means it has HIGH BOILING and MELTING POINTS

• Will CONDUCT ELECTRICITY when dissolved in water

• Form CRYSTALS

A compound formed by the combination of two non-metals.

LOW BOILING and MELTING POINTS.

When two or more substances combine to form a new substance.

The materials at the start of a chemical reaction. *Reactants will always be on the left, and products on the right.

The new materials that are formed during a chemical reaction.*Reactants will always be on the left, and products on the right.

Releases heat energy, or heat exits into the surroundings. This makes the surroundings feel HOT. Burning anything is an example of an exothermic reaction. A candle is an example. Chemical reactions absorb or release energy in the form of heat.

ABSORBS heat energy, or heat enters into the reaction. This makes the surroundings feel COLD. An ice pack is an example.

Matter is not created or destroyed in a chemical reaction. (Stays the same)

Substances that help a reaction proceed faster.

The amount of a substance in a specific volume.

Increasing energy, making reactions more likely to occur.

The greater the surface area, the more area available for reactions to happen.

change in colour, change in Odour, formation of a solid or gas, release or absorption of heat

Catalyst, Concentration, Temperature, Surface Area

chemical reaction where oxygen reacts with a substance to form a new substance and release energy.

slow reaction where oxygen reacts with metal (like rusting)

occurs in the body's cells.