Use hess’s law to calculate the standard heat of the water-gas shift reactions. co(g) + h2o àco2(g) + h2from each of the two sets of data given here: (a)co(g) + h2o(l) àco2(g)+ h2(g)∆퐻#r = 1226 btu/lb-moleh2o(l) àh2o(v)∆퐻#r = 18,935 btu/lb-mole(b)co(g) + ½ o2(g)àco2(g) ∆퐻#r = -121,740 btu/lb-moleh2(g)+ ½ o2(g)àh2o(v)∆퐻#r = -104,040 btu/lb-mole

true

explanation:

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.