Which of the following is not an amphoteric substance? a) lead(II) oxide
b) aluminum hydroxide
C) iron(ill) oxide
d) zinc hydroxide

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.

Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.