3) In the combustion reaction of methane gas: CH4 (8) + O2(g) CO2 (g) + 2 H2O (8) 4.0 X 10 exp 23 molecules of CH4 was used. Determine (a) the moles of CO2 produced (b) using your answer in (a), calculate the volume of CO2 produced at STP (c) the volume of oxygen used in the reaction at STP​

Which statement best describes how atoms combine to form sodium chloride (nacl)? a. a positively charged sodium ion and a positively charged chlorine ion form an covalent bond. b. a positively charged sodium ion and a negatively charged chlorine ion form an covalent bond. c. a positively charged sodium ion and a positively charged chlorine ion form an ionic bond. d. a positively charged sodium ion and a negatively charged chlorine ion form an ionic bond.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.