Select the correct answer.

The combustion reaction of propane is described by the reaction.

C3H8 + 5O2 → 4H2O + 3CO2.

How many moles of O2 are required to generate 3 moles of CO2?

A.

2.5 moles

B.

3 moles

C.

4 moles

D.

5 moles

Provide at least three indicators of a chemical change that are present in burning a piece of paper.

What kind of ion will nitrogen form?

What is a low pressure system?

What are the subatomic particle of an atom

Which of the following does not involve colligative properties?

Which statement correctly describes the relationship between reactant and yield? The actual yield is calculated from the amount of the excess reactant present. The actual yield is calculated from the amount of the limiting reactant present.

Balance the following reaction. Leave the box empty if no other coefficient is needed. C2H5 + O2 → CO2 + H2O

What three human body systems coordinate cause an arm to move

Which statement does NOT apply to Alkenes? They readily react They have double bonds They are more stable than alkanes They are unsaturated

Why do scientists say that this technology will not harm fish in the area?