Is boiling water until salt remainds a chemical or physical?

Which of the following explains why elements in column 17 (the halogens) are very reactive?

If a 30-ft3 volume of air at 10 psig is compressed to 25 ft3 at a constant temperature, what would be the new pressure in psig?

Which statement describes the charge of an electron and the charge of a proton?

Choose the substance with the highest vapor pressure at a given temperature:a. SiS2b. RbClc. CH3SCH3d. BF3e. SbH3

Which of the following represents the shortest distance? 1 inch = 2.54 cm 12 in = 1 ft 5280 ft = 1 mile a. 28.0 centimeters b. 11.0 inches c. 271 millimeters d. 0.965 feet e. 0.000155 miles

The smallest particle of a substance that still retains the properties of that substance

The reaction below demonstrates which characteristic of a base? Upper C U upper S upper O subscript 4 (a q) plus 2 upper N a upper O upper H (a q) right arrow upper C u (upper O upper H) subscript 2 (s) plus upper N a subscript 2 upper S upper O

What are two examples of decomposers

An unknown substance dissolves in water but it does not conduct electricity before or after it has dissolved.

21% of oxygen in air with barometric pressure of 625. what's partial pressure