What is the formula for chalcocite copper(i) sulfide

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?

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

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility