Calculate the percentage composition of a hypothetical compound, X2Y3. The molar mass of X is 4.53 g/mol and the molar mass of Y is 8.71 g/mol. Round both answers to whole numbers.

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?