28. How many moles of BaSO4 could be obtained from 0.75moles of BaCl2 via the precipitation reaction: BaCl2(aq) + Na2S04(aq) --> 2NaCl(aq) + BaSO4(s)?​

Write a paragraph at least 10 sentences explaining how rocks are used today in society

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

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