Examine the following reactions. Reaction 1
PC13(g) + Cl2(g) → PCI-(g)
Reaction 2
PC15(g) → PCl3(g) + Cl2(g)
Which options correctly explain the relationship between the two reactions?

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

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.