« previous next »

Author Question: If the following ions Ba2+, Cl-, K+ and SO42- are placed in a test tube, the precipitate formed is ... (Read 77 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Aug 27, 2018
If the following ions Ba2+, Cl-, K+ and SO42- are placed in a test tube, the precipitate formed is ________.
 
  A) BaSO4
  B) KCl
  C) BaCl2
  D) K2SO4

Question 2

Doubling the concentration of A leads to doubling the rate, while doubling the concentration of B quadruples the rate. The rate equation is, therefore, ________.
 
  A + B  C
  A) Rate = kAB2
  B) Rate = kA
  C) Rate = kA2
  D) Rate = kA2B

Question 3

New technologies provide current benefits, but often present future risks.
 
  Indicate whether the statement is true or false


cdmart10

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A

Answer to Question 3

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
Eustachian tube Eustachian tube
Cylinder Leakage Test Cylinder Leakage Test
Cover test Cover test
An analytical procedure requires a solution of chloride ions. How many grams of MgCl2 must be ... An analytical procedure requires a solution of chloride ions. How many grams of MgCl2 must be ...
If the following ions Ca2+, Cl-, Na+ and CO32- are placed in a test tube, the precipitate ... If the following ions Ca2+, Cl-, Na+ and CO32- are placed in a test tube, the precipitate ...
Video: Role of complement proteins

For a complete list of videos, visit our video library