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7 Cards in this Set

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  • Back
  • 3rd side (hint)
what is an element?
a pure substance that cannot be broken down into a simpler substance.
what is a compound?
a pure substance that contains two or more different elements in a fixed proportion.
what does physical property mean?
a characteristic or description of a substance that can be used to identify it.
state of matter at room temperature, hardness, melting, and boiling points, odour, solubility, color.
what does chemical property mean?
the characteristic behaviour that occurs when a substance interacts with another to become a new substance.
what is a physical change?
a change in the size or form of a substance, which does not change the chemical properties of the substance.
what is a chemical change?
the alteration of a substances into one or more different substances with different properties; also called a chemical reaction.
How are ionic and convalent bonds form?
ionic bonds are formed when electrons are transfered from one atom to the other. Convalent bonds are formed when electrons are shared between atoms.