which reaction is exothermic? a reaction thast asorbs energy from the environment. a reaction that requires an activation energy. a reaction that releases energy into the environment. a reaction that does not involve a change in energy

Answers

Answer 1
An reaction that releases energy into the environment.

The enthalpy change (energy taken in for bond breaking of reactants - energy released for bond forming of products) can be used to determine whether a reaction is exothermic or endothermic. Since an exothermic reaction has a negative enthalpy change, it means it releases more energy than what it takes in. Hence the third statement is correct.
Answer 2

An exothermic reaction is a reaction that releases energy into the environment. Thus, the correct option is C.

What is a Reaction?

A reaction may be defined as a process through which one or more substances known as reactants, are converted to one or more different substances, known as products.

An exothermic reaction shows the negative enthalpy change by which it can be assumed that it releases more energy in the environment as compared to consumption during the reaction.  

Therefore, an exothermic reaction is a reaction that releases energy into the environment. Thus, the correct option is C.

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Related Questions

A student is viewing a cell under a microscope. She determines that it has a nucleus, a cell membrane, a cell wall, and chloroplasts.

What type of cell is the student most likely viewing?

Choose 1 answer:

(Choice A) Plant cell

(Choice B) Fungal cell

(Choice C) Bacteria

(Choice D) Animal cell

Answers

Answer:

The student is most likely viewing a (A) plant cell

Explanation:

All cells have a nucleus, but only green plants contain chloroplasts.

A student is viewing a cell under a microscope. She determines that it has a nucleus, a cell membrane, a cell wall, and chloroplasts,it was a Plant cell .

What is a Plant cell?A student is viewing a cell under a microscope. She determines that it has a nucleus, a cell membrane, a cell wall, and chloroplasts,it was a Plant cell .What is a Plant cell?Plant cells can harness the energy of the Sun, store it in the chemical bonds of sugar and later use this energy. The organelle which is responsible for this is the chloroplast. Chloroplasts contain chlorophyll, the green pigment that gives leaves their colour and absorbs light energy.Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection.

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What does the space surrounding the nucleus of an atom contain?

Answers

Answer:

protons and electrons

Answer:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). ... Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.

Explanation:

Does this Helpp..

What are wolves able to do that coyote and grizzly bears can’t?

Answers

Answer:

Hmm.

Explanation:

Well, bears can't be domesticated. And bears can't have pups, because they have cubs. Coyotes can't grow to the size of wolves, bears and coyotes aren't in packs either (coyotes just gang up for a big kill, then split up).

Bears can’t have pups and can’t be domesticated. Coyotes and bears aren’t in packs and coyotes and get the size of wolves .

Which type of fat, saturated or unsaturated, is liquid at room temperature?

Answers

Answer:

unsaturated

Explanation:

because the blocked is tightly packed

A whale has a calf and a bacteria replicates through cloning. Both of these are examples of

Answers

Answer:

Reproduction

Explanation:

Answer:

growth and development

Explanation:

i did the unit test and got this question correct but didnt get all the questions correct my grade was 84%


Which of these in NOT made up of two or more substances that are combined physically?
A. solution
B. heterogeneous mixture
throug
mixture
C. compound
D. homogeneous mixture

Answers

B the answer is b I think

The two or more substances that are combined physically not is  heterogeneous mixture through.

What is not made up of two or more substances that are combined physically?

Chemical Mixtures

A mixture is a component system made up of two or more different substances, which are mixed but not merged chemically.

A blend to the physical mix with of two or more substances in which the uniqueness of the individual substances are retained.

Thus, option "B" is correct, the two or more substances that are combined physically not is  heterogeneous mixture through.

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Why must an organism have ALL 8 characteristics of life to be considered living?

Answers

8 characteristics have to be in one object to be considered living is because of it was missing a characteristic then it would basically be blind, deaf, etc.

If a parent cell has 16 chromosomes, how many chromosomes will each daughter cell have after mitosis? Explain.​

Answers

Answer:

16

Explanation:

What did Tanya, a student in Robert Full's lab, need to figure out before she could answer her question?

Answers

Answer:

dont know sry

Explanation:

dont know sryi

What are some examples and non examples of receptors?

Answers

Answer:

an acetylcholine receptor recognizes and responds to its endogenous ligand, acetylcholine. and non are cytosolic enzyme that are responsible for catalysing the transfer of a phosphate group from a nucleoside triphosphate donor, such as ATP, to tyrosine residues in proteins

1.
How does binary fission differ from multiple fission?​

Answers

Answer: In binary fission, only two daughter cells are formed from the splitting of the parents cell.

In Multiple Fission many daughter cells are produced simultaneously from the parents cell.

in binary fission the parent organism splits to form two new organisms. In multiple fission the parents organism splits to form many new organisms at the same time it takes place in organisms like Amoeba paramecium

Please anwser asap due by 11:59

Answers

Answer: what’s the question? the image is not showing up.

Which of the following particles found in an atom have charges?
A. only protons
B. only electrons
C. electrons and neutrons
D. protons and electrons

Answers

Answer:

D. Protons and electrons

Explanation:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).


Which feature of mobility can eukaryotic and prokaryotic cells have?
a. Cilia
b. Flagella
c. Pseudopodia
d. pili

Answers

Answer:

B

Explanation:

Which of the following are types of passive
transport? Check all that apply.
osmosis
diffusion
phagocytosis
facilitated diffusion
endocytosis
exocytosis

Answers

Answer:

osmosis, diffusion, facillitated diffusion!

Explanation:

jus did it

Diffusion, osmosis, facilitated diffusion are the passive transport.

What is osmosis ?

The process in which solvent molecules pass from a lower concentration region  to a higher concentration solution through a semipermeable membrane called as osmosis.

It is a passive transport as no external energy is needed.

Osmosis, like a diffusion not require the input of energy and it moves water down or against the concentration gradient.

When a living plant cell kept in a sugar or salt solution, water diffuses from the cell sap out through the cell membrane called as exosmosis.

The cell causes shrinkage of the protoplasm due to water loss, where the cell undergo a condition called as plasmolysis or necrosis.

When the plasmolyzed cell is placed in distilled water, the cell regains it’s turgidity and also the original shape and size by a process called endosmosis.

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What is being tested?

A.)How does the amount of water given to a plant per day affect the plant.

B.)How does the amount of water given to a plant per day affect the height of the plant.

C.)How does the number of times l water a plant affect the height of the plant.​

Answers

Answer: is c

Explanation:

Which of the following is the correct order of steps in the scientific method?
A) experiment, observation, hypothesis, conclusion.
B) observation, experiment, hypothesis, conclusion.
C) hypothesis, experiment, observation, conclusion.
D) observation, hypothesis, experiment, conclusion.

Answers

The correct answer is D because first you need to observe then guess what will happen, then conduct your experiment, and last record your results

The following is the correct order of steps in the scientific method - D) observation, hypothesis, experiment, conclusion.

The scientific methodis an empirical method of acquiring knowledge that has characterized the development of sciencesystematic pursuit of knowledge involving the finding and hypothesizing of a problemThe scientific method includes:asking a question about something you observedoing background research to learn what is already known about the topic,constructing a hypothesis,experimenting to test the hypothesis,analyzing the data from the experiment and drawing conclusions

Thus, The following is the correct order of steps in the scientific method - D) observation, hypothesis, experiment, conclusion.

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what is digestive syestem

Answers

Explanation:

Hey there!!!

The group of organs working together to bring a complex substances to simpler substances called digestive system.

It includes various organs, such as, mouth, stomach, small intestine, large intestine, etc.

Hope it helps..

What are the demerits of cell theory ?​

Answers

Answer:

All living things are composed of cells, cells are the basic unit of life, and all cells come from preexisting cells.

Explanation:

sorry i accidentally asked it as a question

What do we call the organic
material that detritivores feed on?

Answers

Detritus. Detritus is a heterotrophic organism which is what detritivores feed on. It is a type of organic material and it’s made up of animal material and dead plants. Hope this helped!

Please help it’s urgent!!!!

Answers

Answer:

True

Hope this helps :)

please help me answer this question​

Answers

1)In sexual reproduction,Seeds are viable and strong to face enviornmental changes while In Vegetative Reproduction Seeds are less viable and less strong. 2)In sexual reproduction,seeds of new varieties are possible while in Vegetative reproduction,No new varieties can be produced.

2. Sexual reproduction typically requires the sexual interaction of two specialized organisms, called gametes, which contain half the number of chromosomes of normal cells and are created by meiosis, with typically a male fertilizing a female of the same species to create a fertilized zygote.

3. Reproduction is a fundamental feature of all living organisms. ...

4.Examples of plants showing vegetative propagation by stems include ginger, turmeric, banana, potato, onion, sugarcane. The common thing in the vegetative propagation of the modified stems of potato, ginger and sugarcane is that they all of buds in their nodes that give rise to new plant.

Answer:

i will help

Explanation:

Puberty is controlled by hormones released by the ____
(chill out its a biology question) 18 points and brainliest

Answers

Answer:

'gonadotrophin releasing hormone' (GnRH)

Explanation:

HEY DEAR

HERE IS UR ANSWER

Puberty's trigger lies in a small part of the brain called the hypothalamus, a gland that secretes gonadotropin-releasing hormone (GnRH).

HOPE IT HELPS

idk how this is biology but , its on my work. i need help​

Answers

United Arab Emirates

Select the graph that best represents the "FIGURE." If B is between A and C, then AB + BC = AC

Answers

Answer:

there is no graph

Explanation:


What is Brittleness

Answers

Answer:

having hardness and rigidity but little tensile strength; breaking readily with a comparatively smooth fracture, as glass. Easily damaged or destroyed; fragile

Explanation:

A material is brittle if, when subjected to stress, it breaks with little elastic deformation and without significant plastic deformation

In the carbon-oxygen cycle,carbon dioxide is used for____and oxygen is used for_____.

Answers

Answer:

In the carbon-oxygen cycle,carbon dioxide is used for photosynthesis and oxygen is used for respiration.

Explanation:

2. Which determines the identity of an element

A. its mass number
B. the charge of the atom
C. the number of its neutrons
D. the number of its protons​

Answers

D

The number of protons in an element determines its identity

The identity of an element is primarily determined by: D. The number of its protons.

The identity of an element

The number of protons in an atom's nucleus is known as its atomic number. Each element on the periodic table has a unique atomic number, which corresponds to the number of protons in the nucleus of its atoms. For example, hydrogen has an atomic number of 1 because it has one proton, while carbon has an atomic number of 6 because it has six protons.

The atomic number is crucial in defining the identity of an element because it distinguishes one element from another.

Hence option d is correct

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Question 1
Place them in order from the sun:
* 1. tertiary consumer
2. decomposer
13. primary consumer
1 4. secondary consumer
15. producer

Answers

Producer primary consumer secondary consumer tertiary consumer decomposer

Which organelle, if punctured, would leak digestive enzymes into the cell's cytoplasm?

Choose 1 answer:

(Choice A)
A
Nucleus

(Choice B)
B
Chloroplast

(Choice C)
C
Mitochondria

(Choice D)
D
Lysosome

Answers

Answer:

Answer: choice D lysosome

Explanation:

i checked it good trust me

ps:mark me as brainliest

Answer:

lysosome

Explanation:

nucleus stores info

chloroplasts make chlorophyll

mitochondria makes cellular respiration

they don’t have digestive enzymes

lysosomes break down stuff using enzymes

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