Which is an example of a chemical change?
a) mixing of poster colors
b) formation of clouds
c) metal corroding in salt water
d) sugar dissolving in water
e) separating salt from seawater

Which statement describes james chadwick’s discovery.

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%