Predict the conditions (high temperature, low temperature, all temperatures, or no temperatures) under which each of the following reactions will be spontaneous. a. H2O(g) →H2O(l)b. CO2(s)→CO2(g)c. H2(g)→2H(g)d. 2NO2(g)→2NO(g)+O2(g)(endothermic)

Reaction a will be spontaneous at low temperature

Reaction b will be spontaneous at high temperature

Reaction c will be spontaneous at high temperature

Reaction d will be spontaneous at high temperature

Explanation:

Reaction a is an exothermic with a negative entropy and will act spontaneously at low temperature.

Reaction b, c, and d are endothermic reactions and have positive entropy, they will react spontaneously at high temperatures.

if you mean hydrogen and oxygen then water is the product

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.