Boiling refers to which phase change?

A. gas to solid

B. liquid to gas

C. solid to liquid

D. liquid to solid

How was the first periodic table of the elements organized?

Suppose there is 1.00 L of an aqueous buffer containing 60.0 mmol of acetic acid (p K a = 4.76) and 40.0 mmol of acetate. Calculate the pH of this buffer.

3Ni2 + (aq) + 2Co (s) ⟶2Co3 + (aq) + 3Ni (s) Which substance gets oxidized?

Magnesium and Iodine will combine to make a compound. Mg_I_ Fill in the blanks with the number of the subscript.

Playas are found in: forests mountains plains deserts

What mechanical waves needs a medium to travel through? A. all mechanical waves need a medium to travel through B. surface waves only C. transverse and longitudinal waves only D. longitudinal and surface waves only

Which of the following statements correctly describes how Moseley's research affected the development of the periodic table? Moseley's research led to the reorganization of the elements based on their atomic mass instead of their physical appearance.

A minerals luster is produced by its ability to transmit light. Opaque minerals always have a metallic luster because they do not transmit any light. True False

The elements selenium and oxygen are both poor electrical conductors in which section of the periodic table are they found

What is the mole ratio of NaOH to Al (OH) 3