Consider the reaction between acetylene, c2h2, and oxygen in a welding torch: 2c2h2(g) + 5o2(g) → 4co2(g) + 2h2o(g) if 5.4 moles of acetylene react with sufficient oxygen, how many grams of co2 will be formed? a. 2.4 × 102 g b. 9.5 × 102 g c. 4.8 × 102 g d. 1.5 × 102 g e. 0.49 g

Answer : The mass of formed will be,

Explanation :

The balanced chemical reaction will be:

First we have to calculate the moles of .

From the reaction, we conclude that

As, 2 mole of react to give 4 mole of

So, 5.4 moles of react to give moles of

Now we have to calculate the mass of

Therefore, the mass of formed will be,

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.