« previous next »

Author Question: Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + ... (Read 91 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Aug 27, 2018
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l)  Ca(OH)2(s) In a particular experiment, a 5.00-g sample of CaO is reacted with excess water and 6.11 g of Ca(OH)2 is recovered.
 
  What is the percent yield in this experiment? A) 122
  B) 1.22
  C) 7.19
  D) 92.5
  E) 81.9

Question 2

Which pair of compounds is used in the manufacture of fertilizers?
 
  A) HCl and NaOH
  B) HCl and H3PO4
  C) HNO3 and HCl
  D) H2SO4 and H3PO4
  E) HNO3 and NaOH
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


Joc

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Methane combustion as an energy–yielding redox reaction. Methane combustion as an energy–yielding redox reaction.
The Importance of Water The Importance of Water
Water provides adequate hydration Water provides adequate hydration
Water and Body Fluids Water and Body Fluids
How to find the reaction for each of the beams below. How to find the reaction for each of the beams below.
What is the molarity of KCl in sea water if sea water is 12.5% (m/m) and the den What is the molarity of KCl in sea water if sea water is 12.5% (m/m) and the den
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library