Select the correct answer. Given: SnO2 2H2 → Sn 2H2O Tin oxide reacts with hydrogen to produce tin and water. How many moles of SnO2 are needed to produce 500. 0 grams of Sn? A. 1. 57 B. 4. 21 C. 634. 8 D. 59,350.

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

dynamic equilibrium is the answer.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

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