What element is denoted by 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d6

Is fission or fusion used in nuclear power plants? Which is more powerful? Which is a cleaner source of energy? Why do you think one used as an energy source in power plants while the other is not?

Which of the following has the most kinetic energy? A car traveling at 80 kph. incorrect answer B tractor-trailer traveling at 80 kph. incorrect answer C cheetah running at 80 kph. incorrect answer D motorcycle traveling at 80 kph.

Nitrogen and Hydrogen gas react to form ammonia as shown in the following reaction: N2 (g) + 3H2 (g) = 2NH3 (g) If a sample of 4.5 moles of hydrogen gas was reacted with excess nitrogen, how many moles of ammonia gas would be produced?

What is kinetic energy? A. the energy an object has due to its motion B. the energy derived from chemical reactions C. the energy an object has due to its position D. the energy an object releases as heat

Radioactivity is caused by the decay of the nucleus which occurs when unstable nuclei lose protons and neutrons.

The suffix "-megaly in the term gastromegaly means:

The harder you strike a drum, the greater the sound's A) medium B) volume C) frequency D) pitch

The equation X + Y 2Z has the rate law equation shown below. Which of the following statements best describes the relationship of X on the rate of the reaction? rate = k[X]2[Y] Changing X has no effect on the reaction rate.

What moves in or out of a substance during a change of state?

2.5 moles of sodium chloride is dissolved to make 0.050 liters of solution