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hydrogens reaction to a burning splint
makes a popping noise
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oxygens reaction to a burning splint
reignite the fire
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nitrogens reaction to a burning split
the fire will be extinguished
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carbon dioxides reaction to a burning splint
the fire will be extinguished
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sublimation
solid to gas
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disposition
gas to solid
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solid to liquid
melting
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liquid to solid
freezing
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liquid to gas
evaporation
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gas to liquid
condensation
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alkali metals chemical properties
react to both atmospheric oxygen and water vapour
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alkaline earth metals chemical properties
all react to water except beryllium, oxidize, highly reactive
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halogens chemical properties
highly reactive, form acids when combined with hydrogen
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noble gases chemical properties
odorless, inert, colorless, nonflammable, and are neutral gases that have low chemical reactivity
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viscous
high viscosity like honey
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not viscous
low viscosity like water
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inert
unable to move, not chemically reactive
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is helium an inert gas?
yes it is because all noble gases are inert
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are alkaline earth metals less reactive than alkali metals?
they are because they have one more valence electron than alkali metals
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transpiration
water vapour from a plant to evaporation
Note 
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