PLEASE HELP!! From the following balanced equation,

Ca(s)+C(s)+32O2(g)⟶CaCO3(s)

how many moles of O2 are required to form 4.25mol CaCO3?

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.

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false