An element has two naturally occurring isotopes with atomic masses of 112.90 amu and 114.90 amu. The relative abundances of these elements are 4.29% and 95.71%, respectively. What is the average atomic mass of the element?

What’s the scientific notation for the number 6,840,000,000

How many molecules are found in 1.32 mol of nacl?

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon