This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If the following ions Ca2+, NO3-, Na+ and SO42- are placed in a test tube, the precipitate formed is ... (Read 84 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Aug 27, 2018
If the following ions Ca2+, NO3-, Na+ and SO42- are placed in a test tube, the precipitate formed is ________.
 
  A) NaNO3
  B) CaSO4
  C) Ca(NO3)2
  D) Na2SO4

Question 2

Doubling the concentration of A leads to doubling the rate, while doubling the concentration of B has no effect on the rate. The rate equation is, therefore, ________.
 
  A + B  C
  A) Rate = kAB
  B) Rate = kA
  C) Rate = kA2
  D) Rate = kA2B

Question 3

The VSEPR theory is based on
 
  A) the neutralization of ionic charge in a molecule.
  B) the minimization of repulsion among valence electron pairs.
  C) the arrangement of core electrons in a molecule.
  D) the loss and gain of electrons based on electronegativity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

AngeliqueG

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

B

Answer to Question 3

B


ec501234

  • Member
  • Posts: 573
Reply 2 on: Aug 27, 2018
Gracias!

adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Assisting with a Pelvic Examination and Pap Test Assisting with a Pelvic Examination and Pap Test
Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ... Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ...
Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ... Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ...
Polyatomic Ions Polyatomic Ions
Cylinder Leakage Test Cylinder Leakage Test
Performing the manual compression test Performing the manual compression test
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library