Acompound has the empirical formula chcl. a 256 ml flask, at 373 k and 750. torr, contains 0.800 g of the gaseous compound. give the molecular formula. (type your answer using the format ch4 for ch4.)

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.

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.