My mom said that if i get held back in 7th i will go back to 6th bc supposedly that means i diddnt learn enough in 6th is that true

Driving cars lowers the pH of the oceans by a. releasing CO2 that dissolves and forms acid in the oceans b. releasing pollutants that lead to smog C. releasing CO that dissolves and forms acid in the oceans d.

Which process releases the most heat? - the condensation of 10 g of gaseous water - the melting of 10 g of ice - the freezing of 10 g of liquid water - the boiling of 10 g of liquid water

How many molecules are in 2.50 moles of SO2

Which evaporates more quickly: 55 ml of water (h2o) in a beaker or 55 ml of acetone [ (ch3) 2co] in an identical beaker under identical conditions? is the vapor pressure of the two substances different? explain?

Calculate the percent water in each of the following hydrates: a) Strontium chloride hexahydrate b) Zinc sulfate heptahydrate c) Beryllium nitrate trihydrate

If a plane is traveling300 mph how long will it take to travel 1800 miles

How do you get friends

Determine the number of grams of NaCl necessary to make up 100 mL of a 0.10 M solution. 0.017 g 0.58 g 1.7 g 58 g

What causes an increase in the average global temperature?

Which of the following is true regarding nuclear fission and nuclear fusion? A. Both of these processes can provide energy. B. Our sun's heat is an example of both of these processes. C. Both of these processes are equally complex to control. D.