« previous next »

Author Question: Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + ... (Read 616 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?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Your heart beats over 36 million times a year.

water bear water bear
Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ... Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ...
The glycogen synthase reaction The glycogen synthase reaction
How water moves through a tree How water moves through a tree
Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction Energy requirements of an uncatalyzed versus an enzymatically catalyzed chemical reaction
Which reaction below represents Th decay by alpha emission? Which reaction below represents Th decay by alpha emission?
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library