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
Nata [24]
3 years ago
6

A catalyst is a chemical:

Biology
2 answers:
AlekseyPX3 years ago
4 0
A catalyst is a chemical that is present during a chemical reaction, but does not actually participate in the reaction as a reactant or a product. It does, however, lower the activation energy of the reaction, making the reaction easier to accomplish. Therefore, it speeds up a reaction without actually taking part.
grigory [225]3 years ago
3 0
Is a substance that speeds up a chemical reaction, but is not consumed by the reaction
You might be interested in
Describe the process of a diffusion and osmosis in daily life biological processes.
Elden [556K]

Answer:

i think homeostasis for osmosis

7 0
3 years ago
What causes the light to refract as it<br> passes from air to water?
Anastasy [175]

Answer:

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction

Hope this helps.

8 0
3 years ago
PLEASE HURRY AND ANSWER ILL GIVE BRAINLIEST JUST PLEASE HELPPPP
Elan Coil [88]

Answer:

11 years

Explanation:

thats the time it takes for a full solar cycle

4 0
2 years ago
Read 2 more answers
The electrons of photosystem I A. attach to water molecules during the light reaction. B. produce molecules of oxygen that enter
Sergeeva-Olga [200]

Answer:d.are eventually replaced by electrons from photosytem 11

Explanation:there are two photosystems in the photosynthetic process.PSI and PS II. PS I has a reaction center called P700 because it's chlorophyll has a maximum absorption of 700nm wavelength.PSII has a reaction center called P680nm for similar reason.when an excited electron is transferred to P700,it becomes excited.this electron is passed down from from acceptor to another, until it is used to reduce NADP+ to NADPH.this electron is replaced when P680 gets excited by a photo of light and splits water to release electrons , protons and Oxygen

7 0
3 years ago
Biology homework assignment question please help!!! Will give BRAINLIEST if right.
ikadub [295]
A,C,D Is the answer to the question
6 0
3 years ago
Read 2 more answers
Other questions:
  • Driving involves taking some risks __________.
    9·2 answers
  • Cells perform many functions in living organisms. Which of the following processes occur in cells?
    8·2 answers
  • PLEASE HELP ASAP
    11·1 answer
  • What kind of organism is the second one in the following food chain?
    15·1 answer
  • A body cell is in the longest stage of its life cycle. The cell grows, synthesizing proteins and increasing in size. Eventually,
    10·1 answer
  • Which of the following is NOT a characteristic of all living things?*
    7·1 answer
  • What is the difference between a biomass pyramid and a pyramid of numbers
    9·1 answer
  • In London, peppered moths that were light colored blended in with trees of the area, and were well populated. Over time, polluti
    9·2 answers
  • Look at the map below. The mountains in the Pinnacles National Monument and the mountains at Tejon Pass were once located next t
    6·1 answer
  • The MN blood group in humans is determined by two alleles of a single gene. In a population containing 90 individuals with genot
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!