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Physical and Chemical: Properties and Changes
Transcript of Physical and Chemical: Properties and Changes
learned to identify them by their physical properties. Physical Changes Physical Changes have to do with a change in energy of the particles. Physical Changes can occur by melting, freezing, boiling or evaporating. Is it really the same? </3 Chemical Changes The explosion of fireworks is a Chemical Change In a Chemical Change, bonds are broken and new atoms combos are formed. When Chemical Changes occur the atoms are rearranged and give off energy. Chemical Changes can be seen within changes of odor, color, temperature, formation of gasses, light, or sound. Bubbles are a Chemical Change of water to a gas. Even baking is a chemical change Physical and Chemical
Properties and Changes Chemical Properties There are also other properties such as the melting and boiling points, mass, density, and temperature. Physical Changes do not produce a new substance. Physical changes also occur when cutting or breaking an object. If you break a bottle, crush a can or dice an apple it doesn't change what the object is. Rust is a chemical change States of matter are physical states that change with increasing or decreasing energy. Chemical changes cause a new substance to be created from the other substances.