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PS: FE 3
Question | Answer |
---|---|
the number in the chemical equation that tells the quantity of molecules involved in a reaction | coefficient |
subatomic particle that has no charge | neutron |
subatomic particle that has a positive charge | proton |
subatomic particle that has a negative charge | electron |
packets of energy that electromagnetic waves travel | photons |
sunburn is caused by an electromagnetic radiation known as? | ultraviolet radiation |
intermolecular force caused by permanent partial charges | dipole-dipole force |
elements are arranged by their __?__ in the periodic table | atomic number |
process where a liquid turns into a solid | freezing |
process where a solid turns into a liquid | melting |
process where a liquid turns into a gas | evaporation |
process where a gas turns into a liquid | condensation |