Physics, 24.07.2019 23:40 nnance4784

*identify if the following are physical (p) or chemical (c) characteristics: 1) sodium (na) is a very reactive alkali metal. 2) oxygen (o) is a gas. 3) wood is flammable. 4) a ruby is red. 5) copper (cu) conducts electricity. 6) water (h2o) freezes at 0 degrees celsius. 7) iron (fe) reacts with water to form rust. 8) silver (ag) reacts with moisture in the air to form tarnish. 9) the chalkboard is magnetic. 10) sand and dirt are mixed in a flower pot.

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*identify if the following are physical (p) or chemical (c) characteristics: 1) __ sodium (na) is a...