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17. Solve Problems How could you prove that
dissolving table salt in water is a physical
change, not a chemical change?

What is the molar mass of a gas that has density of 2.054 g/l

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals