1) What state of matter is gallium at 40 o C ? a) solid b) liquid c) gas 2) What state of matter is water at -7 o C ? a) solid b) liquid c) gas 3) What state of matter is oxygen at - 230 o C ? a) solid b) liquid c) gas 4) What state of matter is oxygen at -215 o C ? a) solid b) liquid c)  gas 5) What state of matter is gallium at 10 o C ? a) solid b) liquid c) gas

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