If element X has an atomic mass of 32 amu, and element Z has an atomic mass of 118 amu, and element U has an atomic mass of 2 amu, what is the
percent by mass of Z in the following?
ZU3X

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?