A balloon contains 6.0 moles of helium. A hole lets 4.0 moles of helium escape the balloon. How many atoms of helium remain in the balloon?

A. 2.0 atoms

B. 1.2 x10^24 atoms

C. 6.02 x 10^24 atoms

D. 6.0 Atoms

What parameter must remain the same for k to be a constant in the rate law equation? Temperature Pressure Volume Activation energy

A liquid's temperature is lowered from 60°C to 10°C. Did the the liquid's vapor pressure increase, decrease, or stay the same during that time?

Which of the following is an advantage of the sole proprietorship form of ownership? A. Limited liability B. Split responsibility C. Control over the business D. Unlimited liability

A solution of NaOH has a concentration of 25.00% by mass. What mass of NaOH is present in 0.250 g of this solution? Use the periodic table in the toolbar if needed. 0.

An element that is malleable and a good condcutor of heat and electricity could habe an atomic number of

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.

It takes 5.2 minutes for a 4.0 g sample of francium-210 to decay until only 1.0 g is left. What is the half-life of francium-210? 7.8 minutes 1.3 minutes 2.6 minutes 5.2 minutes

What is the correct orbital diagram for carbon