« previous next »

Author Question: Balance the equation: Fe + O2 Fe2O3 What will be an ideal ... (Read 54 times)

DelorasTo

  • Hero Member
  • *****
  • Posts: 548
on: Aug 27, 2018
Balance the equation: Fe + O2  Fe2O3
 
  What will be an ideal response?

Question 2

14 g of nitrogen will yield ________ g of nitrogen dioxide.
 
  N2 + 2 O2  2 NO2
  A) 23
  B) 46
  C) 92
  D) 194

Question 3

Why is HF in water considered a weakly acidic solution, while HCl and HBr in water are considered strongly acidic solutions?
 
  A) HF does not dissolve in water.
  B) HF only partially dissociates into ions in water.
  C) HF has a weak conjugate base, .
  D) Both B and C are correct.


gstein359

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Aug 27, 2018
Answer to Question 1

4 Fe + 3 O2  2 Fe2O3

Answer to Question 2

B

Answer to Question 3

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Acid-base balance and imbalance. Acid-base balance and imbalance.
Do you know how kangaroos balance their body Do you know how kangaroos balance their body
Anaerobic glycolysis Chemical Equation Anaerobic glycolysis Chemical Equation
Acid–Base Balance Acid–Base Balance
system equation system equation
Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π
Video: Membrane Protein and Facilitated Transport (Passive Vs Active)

For a complete list of videos, visit our video library