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
Serga [27]
3 years ago
7

What must happen before a chemical reaction can begin?

Biology
2 answers:
Nitella [24]3 years ago
3 0
The answer should be <span>The activation energy must be reached.</span>
ankoles [38]3 years ago
3 0

Answer:

The reactants need to reach activation energy.

Explanation:

For a chemical reaction there need to be:

1.- The reactants ( the elements or compounds that are going to react).

2.- The activation energy (the necessary energy to start changing the matter in the interchange of atoms among the reactants).

You might be interested in
Which of the following is the best physical description of a gene
Dmitrij [34]

Answer:

It is a part

Explanation:

5 0
3 years ago
Read 2 more answers
Does mercury melt in your hands or does it use barometers and thermometers
MissTica
It uses barometers and therometserss
8 0
3 years ago
How do invasive Australian rabbits affect the food web?
SVETLANKA909090 [29]

Answer:they add another animal into it

Explanation: They’re not a native species and therefore not a usual meal for most predators. Since rabbits are herbivores they don’t have a prey

8 0
3 years ago
Read 2 more answers
Why are estuaries such rich habitats for organisms
andreyandreev [35.5K]
Estuaries are areas where fresh water from rivers meets salt water. As the river drains, it carries much nutrient-rich sediment. Many animal species depend on this food source to provide for their young.
8 0
3 years ago
What happens during the S phase of the cell cycle?
Ulleksa [173]

Answer:

C. The cell copies its organelles.

6 0
4 years ago
Other questions:
  • During the process of __gas loses heat and changes into a liquid.<br> Answer here<br> SUBMIT
    8·1 answer
  • Which of these is most closely associated with darwin?
    6·1 answer
  • Which is asserted that the united states had the right to intervene in the affairs of neighboring american countries
    6·1 answer
  • Explain how soil is important to animal life
    14·2 answers
  • even though the phone is ringing, no sound comes out of the jar. what does this tell you about what is in this jar? what does th
    9·2 answers
  • In DNA replication, the RNA primers are removed and replaced with DNA by:__________.
    12·1 answer
  • PLEASE HELP!!
    13·1 answer
  • An organism is exposed to a mutagen, such as X-rays or ultraviolet light. What could be the effect of the mutagen on the organis
    12·1 answer
  • You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid o
    9·1 answer
  • CFCs can act as greenhouse gases and as chemicals that reduce the ozone levels in the stratosphere. A worldwide ban on CFCs in 1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!