Which two changes can indicate that a physical change has occurred in a substance? a. change in color

b. change in temperature

c. change in smell

d. change in size

In which direction will the following reaction go if the standard reduction potentials are 0.80 v for ag/ag+ and –0.44 v for fe/fe2+? ag+ + fe → ag + fe2+ a.)forward b.)the reaction cannot occur. c.) not enough information is given. d.) reverse

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

What are transitions between a liquid and a solid called? identify which way they are transitioning