How many electrons does barium have to give up to achieve a noble-gas electron configuration?

Which higher heat transfer? a) Fan with air b) boiling water c) cooled liquid

Which of the following statements is true? A) particles of a gas collide with each other in elastic collisions. B) particles of a gas collide with each other in inelastic collisions. C) particles of a gas collide with their container only.

Which type of surface is best able to reflect light? a rough, cloudy surface. a rough, polished surface. a smooth, polished surface. a smooth, cloudy surface.

Carbonyl fluoride, cof2, is an important intermediate used in the production of fluorine-containing compounds. for instance, it is used to make the refrigerant carbon tetrafluoride, cf4 via the reaction 2cof2 (g) ⇌co2 (g) + cf4 (g), kc=8.

A certain shade of blue has a frequency of 7.18 * 1014 Hz. What is the energy of exactly one photon of this light?

The conversion of chemical energy to mechanical energy is best described by which example? A. sunlight warming the ground B. electricity boiling water C. fuel being combusted to power a rocket

he density of solid aluminum is 2.70. If a 1g peice of aluminum is dropped in a cup of water, it will sink to the bottomfloat to the tophover in the middle. (The density of water is 1.0

Match the action to the effect on the equilibrium position for the reaction N2 (g) + 3H2 (g) ⇌ 2NH3 (g). Match Term Definition Increasing the pressure A) Shift to the left Removing hydrogen gas B) No effect Adding a catalyst C) Shift to the right

The number of electrons in a neutral atom of hydrogen (H) atom is

What is buffer solution?