Question 2 What causes a sound wave to travel?
A
An object vibrates, and those vibrations carry air in all directions as transverse waves.
O
B
An object widrates, and those vibrations cany air in all directions as long dudinal waves.
с
An object vibrates, and those vibrations travel through air in one direction as a transverse wave
D
An object vibrates, and those vibrations travel through air in one direction as longitudinal waves.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.