N=S+S A-nt+

-an+?

What does it mean

a deflated hot air balloon weighs a total of 8000 n filled with hot air, the balloon Rises to a height of 1000 m. how much work is accomplished by the hot air?

If 30. g of H, SO reacts, what mass of water is produced H2SO4 + 2 NaOH = Na2SO4 + 2 H20 A. 3.0 g B. 6.0 g C. 11 g D. 16 g

How many grams of cao must react in order to liberate 525kj of heat?

what mass of magnesium is required to react with excess nitrogen to produce 0.500 mol magnesium nitrade

Cindy makes herself a cup of hot chocolate on a very cold day. If Cindy's hands are very cold and the cup is very hot, heat energy transfers from the cup to her hands because

The balanced chemical equation for the combustion of propane is C3H8 (g) + 5O2 (g) →3CO2 (g) + 4H2O (g) C3 H 8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g) Which statement is correct about the complete combustion of 3.00 mole of propane, C3H8? a. 12.

Selena is growing geraniums outdoors in a pot. During the day, the temperature in her area averages 22°C (72°F). At night, the temperature has been dropping to around 13°C (55°F). What advice would you give to Selena and why?

How many carbons are in a molecule of hexane?

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

You are asked to prepare 500 mL 0.250 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the questions regarding the preparation of the buffer. 1.