Consider the following chemistry equation: 2C2H6 + 7O2 --> 6H2O + 4CO2 How many grams of water can be produced from 13.5 grams of C2H6?

24.3 grams H2O
2.70 grams H2O
67.5 grams H2O
47.1 grams H2O

Consider the following chemical reaction:
H2 + O2 --> H2O
How many liters of oxygen gas is needed to produce 2.73 liters of water vapor?
22.4 liters O2
30.6 liters O2
5.46 liters O2
1.37 liters O2

Change of state has wrong energy change - option 2

brian made this table to organize his notes on changes of state. depostion is a change of state that has the wrong energy change listed. it is utilized to collect data as a portion of the development means and in restricted conditions which may be applied at test.

a deposition in the authority of the united states or research for development in the authority of canada includes the catching of affirmed. the out-of-court verbal assertion of a spectator that may be lessened to a printed record for succeeding application for discovery purposes.

Ithink that one is (c)

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.

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