1 pts Which of the following reactions is a combustion reaction?
1. SO2 + O2 —— SO3
II. H202—— H2O + O2
III. C3H7OH + O2—— CO2 + H2O
A. III only
B. I and II only
C. I and III only
D. II and III only

A. III only

Explanation:

Combustion reaction:

Combustion reaction is the one in which substance are burn in the presence of oxygen and yield carbon dioxide and water.

2C₃H₇OH + 9O₂—— 6CO₂ + 8H₂O

The given reaction is the combustion reaction.

Other options are incorrect because,

Reaction 1 is synthesis reaction.

2SO₂ + O₂   →    2SO₃

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B     →   AB

Reaction 2 is decomposition reaction.

H₂O₂    →  H₂O + O₂

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

28528289 29823282 8298232 39858