Which of the following changes will always be true for an exothermic process?

+deltaH

+deltaS

-deltaH

-deltaG

Describe how a wave is reflected on flat surfaces and curved surfaces?

Which Of the following, the best explanation for the fact that most gases are easily compressed is that the molecules in a gas are in constant motion A. are relatively far apart B. have relatively small masses C. have a real, nonzero volume D.

How is momentum conserved in a system wich two satellites connect

Fertilizer, explosives steel and plastics are made using

The final marks in a statistics course are normally distributed with a mean of 70 and a standard deviation of 10. The professor must convert all marks to letter grades. She decides that she wants 10%A's, 30%B's, 40%C's, 15%D's, and 5%F's.

How are saturated and supersaturated solutions similar?

Cobalt fluoride crystallizes in a closest packed array of fluoride ions, with the cobalt ions filling one-half of the octahedral holes. What is the formula of this compound?

When you get into a parked car in the summer time, the metal clip is hot and the seat belt fabric is not. What has a higher specific heat, the metal clip or the seat belt fabric? Think about the definition of specific heat.

A laboratory procedure calls for making 600.0mL of a 1.1M KNO3 solution. How much KNO3 in grams is needed?

How do you make good grades?