what is the role of a catalyst?

Answers

Answer 1

Answer:

Catalysts make such a breaking and rebuilding happen more efficiently. They do this by lowering the activation energy for the chemical reaction. Activation energy is the amount of energy needed to allow the chemical reaction to occur. The catalyst just changes the path to the new chemical partnership

Explanation:


Related Questions

Which of the following are the functions of the muscular system? (4 points)

a
Blood cell production in soft marrow tissues and mineral reserves

b
Largest organ of the body for defense and support

c
Vitamin D production and pumping blood through vessels

d
Voluntary movement and contractile movement

Answers

Answer:

D

Explanation:

Muscles move and contract in order for you to move

The function of the muscular system is voluntary movement and contractile movement.

What do you mean by Muscular system?

The Muscular system may be defined as a complete set of organs that assist in the movement of the body, upholds posture, and circulates blood throughout the body.

The lymphatic system involves in the blood cell production in soft marrow tissues and mineral reserves. The skin is the largest organ of the body for defense and support.

The kidneys are responsible for the production of vitamin D and pumping blood through vessels.

Therefore, the function of the muscular system is voluntary movement and contractile movement.

To learn more about the Muscular system, refer to the link:

https://brainly.com/question/10296629

#SPJ2

Which biomes produce the least food?

Answers

Answer:

Biome Impact on food production

Temperate forest is the best biome for farming, and most of the temperate forest consists of farms or human habitats

Explanation:

does the rate of alcoholic fermentation differ when different types of sugar are used as a source of energy! i need a claim n evidence!!!

Answers

Answer:

Explanation:

This question is a practical question and would require some sort of experiment. However, let's define what rate of reaction means. The rate of a chemical reaction (in this case fermentation) can be described as the speed at which the reaction occurs; meaning the speed at which product is formed per unit time.

The "claim" in the attachment in the question can be referred to as hypothesis since this question is an experiment. The null hypothesis here will be "the rate of alcoholic fermentation is not affected by the type of sugar used as an energy source".

The "evidence" from the attachment will be result of the experiment conducted which cannot be provided here.

However, the conclusion of this experiment (which also answers the main question; does the rate of alcoholic fermentation differ when different types of sugar are used as a source of energy?) should show that the rate of alcoholic fermentation should differ based on the type of sugar used. This is because different enzymes are responsible for the conversion of this disaccharide to the glucose monosaccharide which is what finally undergoes alcoholic fermentation. For example sucrose is broken down into glucose and fructose by sucrase while lactose is broken down into glucose and galactose by the enzyme lactase.

Note that the reaction rate from glucose to produce CO₂ (a product of fermentation) will be the same (regardless of source) but the reaction time from the disaccharide to glucose will be different because of the difference in enzyme and can also be determined by comparing the time to produce the CO₂ by the sugars and the time to produce same amount of CO₂ when given water in the experiment .

During the Berlin Conference, who was granted control of the Congo Free State?

Cecil Rhodes

Otto von Bismarck

Leopold II

Muhammad Ahmad

(Meant to be in the History category! (´▽`))

Answers

Answer:

leopold

Explanation:

In 1884-85, a conference held in Berlin, Germany, decided the colonial status of central Africa. Suspicious of each other's ambitions in the region, the European powers and the United States agreed to grant Leopold possession of the Congo River basin.

Homologous pairs separate in Meiosis I.
O True
O False

Answers

Answer:

False I believe.

Explanation:

Answer:

Explanation:

false

Which of the following parasites larva must attach to a snail to complete their life cycle and then encyst on water plants eaten by livestock?
lungworms
liver flukes
strongyles
pinworms

Answers

b. liver flukes

i took the exam

Which of the following materials would allow the flow of electricity?

A.) cotton
B.) plastic
C.) aluminum
D.) rubber

Answers

Answer:

Aluminium

Explanation:

Aluminium is a conductor of electricity and heat

The following materials would allow the flow of electricity: the aluminum that is present in Option C, as the aluminum is a good conductor of electricity, while the rubber and plastic are not good conductors.

What is the conductor in electricity?

Good conductors of electricity are metals such as gold, silver, aluminum, and so on, and electricity can easily pass through them, whereas non-metals are not good conductors of electricity, such as rubber, plastic, and cotton, which are not metals. The electricity can easily pass through a salt solution, and when a person touches the water while working with the electricity, they get shocked.

Hence, the following materials would allow the flow of electricity: the aluminum that is present in Option C, as the aluminum is a good conductor of electricity, while the rubber and plastic are not good conductors.

Learn more about the conductor in electricity here.

https://brainly.com/question/1317755

#SPJ2

What is Lymes Disease scientific name?

Answers

Lyme disease, also known as Lyme borreliosis, is an infectious disease caused by the Borrelia bacterium which is spread by ticks.

The cell membrane is essentially...
...plasma
...solid.
...liquid
...gas

Answers

plasma i think ... hope it helps
The answer is plasma

I am kinda confused

Answers

proteins: provide energy
carbohydrates: structure of cell wall
lipids: component of cell membrane
nucleic acids: stores genetic info

i think this is right!

Why is the digestive system considered a part of science?

Answers

Answer:

The digestive system helps break down complex meals into the constituent parts the body can use: carbohydrates, proteins, fats, vitamins and minerals.

Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.

Explanation:

What dose Enzyme means

Answers

a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction

Answer:

An enzyme is a working part of our body. They help our bodies break down food faster.

Explanation:

HELP DUE IN 5 MINUTES
What can be deduced about an igneous rock that is made up of very tiny crystals?
1.It formed in magma that cooled very slowly.
2.It formed from lava that cooled relatively quickly.
3.It formed from sediments in an ocean or lake floor.
4.None of these choices are correct.

Answers

Explanation: Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.

Answer : It formed in magma that cooled very slowly.

Oceans and seas can act as a heat reservoir to regulate climates. They can absorb great quantities of heat in the summer, with very little temperature change. In the winter, oceans and seas release the heat. This is the main reason why coastal climates are milder compared to inland climates. Which choice correctly explains this phenomenon? the high specific heat of water caused by hydrogen bonding the high specific heat of water caused by hydrogen bonding the high freezing point of water caused by the strength of its covalent bonds the high freezing point of water caused by the strength of its covalent bonds the high boiling point of water caused by hydrogen bonding the high boiling point of water caused by hydrogen bonding the high heat of vaporization of water caused by nonpolar bonds

Answers

Answer:

The high specific heat of water caused by hydrogen bonding

Explanation:

Specific heat capacity of a substance is the quantity of heat required to raise the temperature of a unit mass of that substance by one degree Celsius (1° C).

Due to the hydrogen bonding present in water, water has a high specific heat capacity of 4184 Joules per kilogram. This means that, water has to absorb 4,184 Joules of heat for the temperature of one kilogram of water to increase 1°C. When compared to other substances such as metals, this is very high. For example, the specific heat capacity of copper is 385  Joules per kilogram which means that it only takes 385 Joules of heat to raise 1 kilogram of copper 1°C.

Therefore water, can absorb a large quantity of heat with very little changes in its temperature. This property of water helps the oceans and seas to serve as heat reservoirs by absorbing a large quantity of heat in hotter seasons and releasing these heat in colder seasons.

CAN SOME ONE HELP ME WITH 8-12 PLZ!!!!!!!!!!!!

Answers

Answer:

8.Active Transport

9.phospholipid

10.facilitated diffusion

11.osmosis

12.ATP

Explanation:

Active transport is similar to osmosis but it happens with other substances

The phospholipid is shaped like a ball with two legs coming out and the legs connect on both sides of the cell to help protect the membrane and to help provide pathways.

Facilitated diffusion is just what is happening when the material or substance is going through the membrane which is either active or passive.

Osmosis is when the water passes through the membrane from a less concentrated place to a high concentrated place

ATP is energy used to help material or substance through the cell however only certain types of material need the energy to pass through some don't require energy at all

A mineral has a specific chemical composition true or false?

Answers

Answer:

True

Explanation:

xplain how organisms in lakes are related through the flow of energy. in environmental science

Answers

Answer:

Energy enters a community when plants and algae trap light energy during photosynthesis. They change the light energy into chemical energy in glucose, which then moves through the community as different organisms eat each other. Some energy is stored through fossilisation, while most of it is lost through heat dissipating into the environment.

Explanation:

Answer:Sample Response

The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases.

Explanation:Have a good day, now do your work.

create the complimentary strand of DNA (A-T, G-C)


Please help me!!!!!!

Answers

Answer:

a) taa-att-ggc

b)ccg-tag-atc

c)aag-ggc-tat-cgt

Explanation:

NEED HELP ASAP ‼️‼️‼️‼️‼️‼️‼️ What are the chemicals represented by the Y?

Answers

I’m ah guess and say c

How does the structure of the cell membrane requires water to move through protein channels?

Answers

Answer:

with the process of osmosis

Explanation:

It is the process of moving the water through the cell membrane when the concentration of water with the two sides of the membrane is different.

The water moves from the place with the less concentration of solute to the place with more solute, as to say from hypotonic to hypertonic place.

It is passive transport.

Does anyone have the answer key to the "muscles and bones gizmo student exploration"?

Answers

Answer:

This is late as heck but for the others looking for this you can use Socratic and look up the answers individually and they’ll pop up one by one. Also if you need to do other gizmos try the app studocu it has a lot of free gizmos that’s already answered.

Which of the following supports the theory of endosymbiosis?

A) Mitochondria and chloroplasts contain their own set of DNA
B) Prokaryotes and eukaryotes are often found living away from each other
C) Prokaryotes are bigger than eukaryotes
D) Mitochondria and chloroplasts do not contain their own set of DNA

Answers

Answer:

Your answer is: C) Prokaryotes are bigger than eukaryotes.

Explanation:

Hope this helped : )

Have you ever wondered why boiling water freezes in extremely cold, dry air? Why do you think that is? Does this make you think of any other questions that you have? Record your thoughts below.

Answers

Answer:well why does hot water burn and cold water frezz

Explanation:

fgj

Help please ill give brainliest !!!​

Answers

Answer:

A

Explanation:

Answer:

a

Explanation:

Predict whether each substance will dissolve in water. dissolves in water, does not dissolve in water

Answers

Answer: for HCO it dissolves in water

for CH2OH IT dissolves in water

Explanation:

i just took the test

It depends on the particular substance concerned that one can predict whether it will dissolve in water or not. Listed below are some general principles:

Things that usually dissolve in water include:

1. Ionic Compounds: Many salts, including sodium chloride (table salt), dissolve in water because of the attraction between positive and negative ions and polar water molecules.

2. Polar Compounds: Due to the similar polarity of water molecules, substances with polar molecules, such as sugar and ethanol, tend to dissolve in water.

3. Many gases Some gases, such as oxygen (O2) and carbon dioxide (CO2), can partially dissolve in water.

Things that usually don't dissolve in water include:

1. Oils, greases, and hydrocarbons are examples of non-polar substances that do not dissolve in water because water is a polar solvent and does not interact significantly with non-polar substances.

2. Insoluble salts: Some salts, such as lead(II) sulfide (PbS) and silver chloride (AgCl), have low solubility in water.

Learn more about Polar compounds, here:

https://brainly.com/question/1426521

#SPJ2

Scientists investigated two types of violet plants. One was found more frequently in shade, the shade violet. The other was found more frequently in sunny places, the violet. Which violet is which? Give a reason for your choice.

Answers

Answer:

Violet plant with small leaves found in sunny places while violet plant with big leaves are found in the shade.

Explanation:

In our planet, the plants though they cannot move like animals and humans, they can adapt themselves to the surroundings and the environment. Plants have the ability to adjust themselves in the varied climate and landscape around themselves.

Almost all the plants need sun light or sun energy to grow and make their own food. Some plants grow well in direct sun light  while some others grow in shades.

In the context, scientist discovered two varieties of violet plants out of which one grows frequently in the sunny places whereas the other found frequently in the shade.

Now the violet plant which have small leaves than the other violet plant are found more frequently in the sunny places as these plants get direct sun light or energy all through the day to make their food. While the plant which have adapted to make food in the shade having large leafs so they can absorb more of sun's energy and make their food. They are found in the shade.

6 facts about DNA Replication??

Answers

Answer:

Your DNA could stretch from the earth to the sun and back ~600 times. ...

We're all 99.9 percent alike. ...

Genes make up only about 3 percent of your DNA. ...

A DNA test can reveal you're more Irish than your siblings. ...

The human genome contains 3 billion base pairs of DNA. ...

Your DNA could link you to places you'd never imagine.

Explanation:

i hope this helps! :)

Answer:

1. Your DNA could stretch from the earth to the sun and back 600 times.

2. We're all 99.9 percent alike.

3. Genes make up only about 3 percent of your DNA.

4. Your DNA could link you to places you'd never imagine.

5. The human genome contains 3 billion base pairs of DNA.

6. A DNA test can reveal you're more Irish than your siblings.

Explanation:

What is described by a rate of diffusion?

Answers

Answer:

The rate of diffusion, dn/dt, is the change in the number of diffusing molecules inside the cell over time. Since the net movement of diffusing molecules depends on the concentration gradient, the rate of diffusion is directly proportional to the concentration gradient (dC/dx) across the membrane.

Scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries. This bioengineered tissue is grown from living cells. The cellular process that enables the cells to grow and develop into tissue is — Group of answer choices

Answers

Answer: The cellular process that enables the cells to grow and develop into tissue is called MITOSIS.

Explanation:

The skin is the largest organ of the body that contains various cells which includes: the epidermal and dermal cells. With the various activities of man, the skin is susceptible to injury through burns.

The healing of the skin, especially injury sustained from burns involves the interaction between the different cell types. Recently, scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries which are grown from living cells.

MITOSIS is the cellular process that enables the cells to grow and develop into tissue. It is also defined as the process by which a cell duplicates into two genetically identical daughter cells.

The process of mitosis occurs in 4 stages; the prophase, metaphase, anaphase, and telophase. The various activities that occurs on these stages brings about the growth and the development of the cells into tissue.

The cellular process that enables cells to grow and develop into tissues is mitosis.

Mitosis allows a single cell to divide and form two morphologically and genetically identical cells. The two cells each also have the potential to divide if the conditions are right.

Thus, a single cell has the capacity to become tens, hundreds, or even thousands of cells as a result of mitotic division.

A tissue is formed from a group of cells that have differentiated to perform similar functions. In order words, without mitosis, there is absolutely no chance for tissues to be formed.

More on tissue formation can be found here: https://brainly.com/question/14844843

Both primary and secondary succession end in the formation of a climax community. True False

Answers

Answer:

True

Explanation:

Other Questions
This is my most recent one. I hope you like it.calculatorsthey solve problemsthe ones you can't figure outor are just to lazy to dothey help so muchI wish there was one for lifeone that figured out life's problemsone that could deal with relationship issuesone that could help you figure out what depression or anxiety isa calculator that could help you through lifebut there isn't a calculator for lifethere are parentsand siblingsand teachersand petsso keep on goingpush through the problemsbecause if you don't have a calculator, you can always work them out on paper :) Which group is likely to study written records : A geologists B archaeologists C Historians In which sentence does the verb agree with the subject?Either of these shirts match that denim skirt.Neither of the girls were home on time.Many of our relatives speaks more than one language.One of my friends is building her own solar panel.I WILL GIVE BRAINLIEST IF YOU GIVE ME ANSWER QUICK! Which of the following is a power that the Florida constitution gives to its people that the U.S. Constitution does not? jury trial recall initiative free speech through (4,-3) parallel to y=-2x 1. Write an equivalentexpression for3x + 12 +7x + x Which line is parallel to the line given y=-5/2x-7 Which graph represents a function? Edge 2020 idk what this subject actually is but whatever What was "Reaganomics? a political policy that ensured the growth of conservative beliefs a social policy that fought against drug abuse and drug incarceration an economic policy that cut taxes to encourage economic growth a diplomatic policy that encouraged weapons reduction in the US and USSR Solve for n.n + 1 = 4(n-3)n = 1n = 8 n = 11 n = 16 The image below shows the download speed of three different companies. Use the information to answer the questions.Complete questions 1-5 in order.1) What is the download speed in MB per minute for AT&T? 2) What is the download speed in MB per minute for Bidmore? 3) What is the download speed in MB per minute for Comcast? 4) Who has the best download speed? Explain your choice.5) All these equations show proportional relationships. Bid more's graph is shown, what would the other two graphs look like for AT&T and Comcast?They will go through _________and be a __________line. Find 5/6(4 x 2/7). Write your answer in simplest form. I need help with this! Everybody!! I HAVE MADE MY OWN STRANGER THINGS STORY! IT IS ON WATTPAD! IT IS CALLED Stranger Things Elevens brother! type it in that order!! I need help pls I beg you Plz help me answer this question CAN SOMEONE PLEASE HELP ME I would appreciate it so much Lab:Charles Law Data Factor the following expression:14x+49 Najat is selling raffle tickets. The table shows the cost (in dollars) of buying different numbers of tickets. Using x for the number of tickets and y for the cost, do the following. Write an equation relating x and y