The space shuttle's solid rocket boosters use ammonium perchlorate and aluminum to create an explosive reaction. the unbalanced reaction can be seen below. nh4clo4(s) + al(s) yields al2o3(g) + hcl(g) + n2(g) + h2o(g) which of the following statements correctly describes this reaction? 1. chlorine is being oxidized 2. aluminum is gaining electrons 3. nitrogen is being reduced 4. aluminum is a reducing agent.

Here we have to choose the statement which correctly describe the reaction NH₄ClO₄ (s) + Al (s) → Al₂O₃ (g) + HCl (g) + N₂ (g) + H₂O (g).

The correct statement for the reaction:

NH₄ClO₄ (s) + Al (s) → Al₂O₃ (g) + HCl (g) + N₂ (g) + H₂O (g) is 4. aluminum is reducing agent.

The reaction between ammonium perchlorate and aluminium metal as given:

NH₄ClO₄ (s) + Al (s) → Al₂O₃ (g) + HCl (g) + N₂ (g) + H₂O (g)

In this reaction the change of oxidation state of each element is:

a) nitrogen (N) from -3 to 0 thus oxidation. Thus nitrogen is oxidized in this reaction.

b) chlorine (Cl) from +7 to -1 thus reduction. Thus chlorine is reduced in this reaction.

c) Aluminum (Al) from 0 to +3 state thus oxidation. Al is loosing electrons; Thus aluminum is being oxidized.

We know the gaining of electron is a reducing process and the compound itself is an oxidizing agent, whereas the loosing of electrons is a oxidation process and the compound itself is an reducing agent.

Thus aluminum is a reducing agent in this reaction.

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.