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
Marrrta [24]
3 years ago
8

I need help, I'm confused..

Biology
1 answer:
Rama09 [41]3 years ago
3 0

Answer:

C

Explanation:

A catalyst is a substance added into a chemical reaction, that aids in the increase of the chemical reaction without the catalysts undergoing any chemical reaction. Thus the catalyst and the beginning of the reaction (reactant) is the unchanged at the end of the reaction (products).

You might be interested in
Consider the cooling curve above. The substance is changing state from a gas to a liquid to a solid. As the temperature changes
Anni [7]

Answer: B)  there is a decrease in kinetic energy and the molecules get closer together.

Explanation: Kinetic energy is directly proportional to temperature, thus as temperature decreases, kinetic energy also decreases.

Gas is the state of matter in which particles are very loosely bound and hence can easily move past one another very easily and have highest kinetic energy.

Liquid is the state of matter in which particles are loosely bound and hence can move past one another easily and have high kinetic energy.

Solid is the state of matter in which particles are tightly bound and hence can not move easily and have low kinetic energy.

Thus on moving from gaseous to solid state, the kinetic energy decreases and the molecules get closer together.


3 0
3 years ago
Read 2 more answers
A man riding his bike had a velocity of 5 meters per second north. After 10 seconds, his velocity increased to 9 meters per seco
VashaNatasha [74]
4 mps increase in 10 seconds = 2 mps increase in 5 seconds = .4meters/2sec
6 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!!!!! <br> What happens to the muscles when the weight is lowered?
erastovalidia [21]

Answer:

C is the answer to the question

6 0
3 years ago
How do different biomes increase earth's biodiversity?
galben [10]

Answer:

Since Biodiversity means variety of living species on earth, different biomes provide habitats for those species. If there was no biomes then they would be no biodiversity. So the impact of biomes provide a living nature for those animals.

Explanation:

I don’t know what I just said lol. I’m dum so don’t like write everything I said. Change it up a little bit

6 0
3 years ago
A 4-year-old boy with a tracheostomy tube is experiencing respiratory distress. He has intercostal retractions, a heart rate of
creativ13 [48]

Answer: carefully suction the tracheostomy tube.

Explanation:

4 0
3 years ago
Other questions:
  • Convert 384base10 to base 12​
    6·1 answer
  • As blood enters the ____________ , the walls of these vessels expand and contract, which can be felt as the pulse where the ____
    13·1 answer
  • A yellow fever mosquito has 3 chromosomes in its eggs. how many chromosomes does it have in its wing cells
    14·1 answer
  • Which activity will create tension in the legs?
    5·2 answers
  • Which of the following is involved in weathering
    14·2 answers
  • Before there was any life on earth, which gas was absent from earth’s ancient atmosphere? A. nitrogen B. ammonia C. oxygen D. me
    8·1 answer
  • Which of the following is/are a nonrenewable source of energy that can be used to produce electrical energy? A. nuclear reaction
    14·2 answers
  • Carbon cycles through the biosphere in all of the following processes EXCEPT
    14·1 answer
  • What differences exist between the Zone of Maturation and Zone of Elongation?
    6·1 answer
  • Which cell type would contain the greatest number of mitochondria?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!