How much water must be evaporated from 8 ounces of a 1 % salt solution to make a   2% salt solution?

Which of the following statements is true about planck’s law

Predict the products butane (c4h10) + oxygen —>

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat