13. Consider the preparation of ethanol, CH3CH2OH, by fermentation of glucose, C6H12O6 C6H12O6(aq) = 2CH3CH2OH (aq) + 2CO2(g)

At STP, what volume of co, is produced by the fermentation of 125 g of glucose (180.16 g/mole) if
the reaction has a yield of 97%?
(a) 15.IL (b) 30.2 L (e) 31.2 L (d) 34,6 L

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

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.

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma