Which wave travels faster through gas and why? A. Electromagnetic because they can move around the particles easier since they are spread out.

B. Electromagnetic because the particles can collide quicker since they are spread out.

C. Mechanical because they can move around the particles easier since they are spread out.

D. Mechanical because the particles can collide quicker since they are spread out.

__can be defined as which velocity changes

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.