2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g)
This equation indicates that ΔH is and energy must be to complete the reaction.

A) positive; added
B) negative; added
C) positive; released
D) negative; released

Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

Determine the reaction and balance the following equations urgent due in the morning

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]