The reaction of element X (--) with element Y (O) is represented in the following diagram:
o
O
Which equation properly describes the reaction between X
and Y?
A. 3X + 8Y X3Yg
B. 3X + 6Y → X3Y6
C. X + 2Y - XY2
D. 3X + 8Y - 3XY2 + 2Y

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-