Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. this number is based on the number of waves or cycles that pass a fixed point in a specific unit of time. to which property of a wave does this identification number refer? a. frequency b. wavelength c. loudness d. amplitude

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8