1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shusha [124]
4 years ago
13

Chlorinated hydrocarbon pesticides, such as DDT, were introduced during World War II to control insects in agricultural crops. A

ll of the following statements about chlorinated hydrocarbons are true EXCEPT: They persist for a long time in the environment. They are safe for all organisms except insect pests. They are inexpensive and easy to apply. They boost crop yields by killing pests.
Chemistry
1 answer:
faltersainse [42]4 years ago
7 0
Except:they are safe for all organisms except insect pest
You might be interested in
Use words to describe basic cell division
ryzh [129]
Cell division<span> is the process by which a parent </span>cell<span> divides into two or more daughter cells</span>
6 0
3 years ago
Read 2 more answers
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()zn
Bingel [31]

Based on the chemical equation, to balance the equation we use 2 as a coefficients of HCl on left hand side of reaction.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equation in which each entities are present in same amount on left side as well as on the right side of the chemical reaction.

Given chemical reaction is:

Zn + HCl → ZnCl₂ + H₂

Above reaction is not balanced equation as number of chlorine and hydrogen atoms are not same, so balanced equation will be:

Zn + 2HCl → ZnCl₂ + H₂

Hence we add 2 as a coefficient of HCl to balance the equation.

To know more about balance equation, visit the below link:
brainly.com/question/26694427

8 0
2 years ago
Which of these scenarios is most likely a chemical reaction?
Murrr4er [49]

Answer: A

Explanation: Because  a gas can turn into a liquid

4 0
3 years ago
Read 2 more answers
What are the threats to coral reefs
spayn [35]
No answer choices?

Well, human destruction, pollution and overpopulation could all be threats to coral reefs. 
3 0
4 years ago
Read 2 more answers
When an acid and a base react, a particular type of salt is formed. This is an example of what type of reaction?
kramer
Physical and chemical
5 0
3 years ago
Read 2 more answers
Other questions:
  • An unlit match contains approximately 1,000 J of chemical energy When it burns, the match releases
    7·1 answer
  • Find the answer for question c
    10·1 answer
  • How many moles of c6h14 contain 9.25 × 1024 molecules of c6h14?
    6·1 answer
  • Law of action-reaction
    8·1 answer
  • how many moles of silver nitrate are needed to produce 6.75 moles of copper (II) nitrate upon reacting with excess copper?
    5·1 answer
  • Energy that is associated with the position or composition of an object is called a kinetic energy. b potential energy. c therma
    10·1 answer
  • Find out no. of moles present is 72 gm of water?
    14·1 answer
  • Dlaczego emaliowane garnki rdzewieją w miejscach uszkodzenia emalii​
    10·2 answers
  • H3PO4 what’s the name?
    11·2 answers
  • Which one of the following is an example of extensive
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!