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Chemistry (Elements, Compounds, and Mixtures element compound mixture…
Chemistry
Elements, Compounds, and Mixtures
Compounds- A combination of two or more separated elements
Carbon monoxide
Cyanide
Carbon dioxide
Mixtures- A new substance made up of different elements
Salt water
Honey
Sugar dissolved in water
Elements- An element is made up of only one type of atom
Carbon
Nitrogen
Oxygen
Physical and Chemical changes
Chemical change- A change that occurs that cannot be reversed and changes the chemical properties of the substance.
Frying an egg
Iron rusting
Breaking down food after digestion
Physical Changes- A change that can be reversed and occurs when two things mix but do not fully combine, physical changes can always be reversed by removing one part of the mixture
Boiling water
Breaking a brick in half
Mixing sugar and water
Closed System
