A chemical reaction that releases energy is called ___________ and a chemical reaction that absorbs energy is called ___________ .
A
exothermic; endothermic
B
endothermic; exothermic
C
exothermic; accumulative
D
liberal; endothermic

Answers

Answer 1

Answer:

a exothermic;endothermic

Explanation:

learned that in sience class yesterday

Answer 2

Answer:

a) Exothermic ; Endothermic

Explanation:

A chemical reaction that releases energy is called exothermic reaction and a chemical reaction that absorbs energy is called endothermic. Hence, option (a) is the correct answer.


Related Questions

How does sickle cell anemia affect the nervous system?.

Answers

Answer:

brain complications

Explanation:

Children with sickle cell disease are at risk for brain damage because their irregularly shaped sickle cells can interrupt blood flow to the brain. Complete clogging of blood flow to the brain can lead to an “obvious” stroke.

What is the most direct evidence in this photo of millions of years of
deposition?
a. the smooth, clear rock layers
b. rock that is red in some places
c. the mountains in the background
d. the water at the bottom of the canyon

Answers

Answer:

Where is the photo?

Explanation:

what is the definition of soil in your own words

Answers

Answer:

The thin layer of material that covers the earth surface that is formed from the wet o rock this layer mixture posses organic matter,inorganic matter, gas liquids and living organisms and provide structural balance to agriculture

Explanation:Been using this definition from grade 7 I hope it helps

In the electrolysis of aqueous nabr, which substance is first produced at the anode?

Answers

NaBr is a soluble salt. When you dissolve the solid in water it will first separate the íons: Na+ interact and is surrounded by about 6 water molecules, and could be now represented by [Na.6H2O]+, still a positive íon; the Br- will also separate from the Na+ and interact with water molecules (typically 4–6), forming the [Br.nH2O]-, a negative íon.

What is produced at the anode in aqueous electrolysis?

Oxygen is produced (from hydroxide ions), unless halide ions (chloride, bromide or iodide ions) are present.

In that case, the negatively charged halide ions lose electrons and form the corresponding halogen.

Thus, this the answer.

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Can flamingos fly??
My friend said they could but I don’t believe them

Answers

Answer:

Yes, Flamingo can fly.

Explanation:

Flamingos travel at approximately 35 miles per hour(mph) over short distance, butvthey can fly upwards of 40 mph duringlong'distance flights with supportive winds.

When co2 levels in the blood increase how does the nervous system react

Answers

okay to answer your question changes and sympathetic tone have a limited effect on cerebral blood flow at normal paco2 levels however the sympathetic nervous system seems to attenuate the CO2 induced increase in cerebral blood flow this phenomenon May indicate a moderate direct effect of the sympathetic nervous system on the cerebral vascular tour for the more sympathetic activation tends to increase ventilation and dust can indirectly increase cerebral vascular tone. I don't take biology but I'm just saying what i know.

hope this helps

6 Which processes will result in a lost of energy? 1. photosynthesis II. release of faeces III. respiration A I and II only B I and III only C II and III only D II and III only​

Answers

Answer:

c and d

Because the same answer

Which of the following may cause a fault? select all that apply.

pulling forces
folding land
earthquakes
pushing forces

Answers

Answer:

folding land and earthquake may cause of fault

Imagine other traits that could have been received from parents: maybe one parent has brown hair and the other has blond hair, but the child has brown
hair.
explain to the best of your abilities why a certain hair color or other traits may come from parents, but other traits may not be exhibited.?

Answers

Answer:

recessive

Explanation:

If two brunette parents have a blond child, they had to have instructions for making blond hair hidden in their DNA.

Due to recessive certain hair color or other traits may come from parents, but other traits may not be exhibited. If two brunette parents have a blond child, they had to have instructions for making blond hair hidden in their DNA.

What are the factors responsible for brown hair?

A person may have a gene for brown hair and a gene for blond hair. He would give one of those traits to his child. Each of two parent transfer two alleles for hair color. Blonde hair is a recessive gene and brown hair is a dominant gene.

Even though the gene passed down from parents to child determine hair color, variations in alleles can result in different hair color than both parents.  In Human DNA has millions of on and off switches and networks that control how genes function. Genes responsible for hair color come from both parents.

Therefore, Due to recessive certain hair color or other traits may come from parents, but other traits may not be exhibited. If two brunette parents have a blond child, they had to have instructions for making blond hair hidden in their DNA.

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Transitions between biomes do not have to be sharp and sudden, which means that different biomes can share characteristics. please select the best answer from the choices provided t f

Answers

Transitions between biomes do not have to be sharp and sudden, which means that different biomes can share characteristics is a true statement.

The transition between two biomes is called an ecotone. The ecotone may have the characteristic of the two biomes in which it borders. It may have plant species from both biomes.  

In addition to dividing ecosystems into aquatic and terrestrial, we can also speak of transitional ecosystems (or transitional biomes), which, as the name implies, are in transit between the first two, or rather, represent the passage from one to the other.

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Answer:

true statement.

Explanation:

Damage to which spinal nerve(s) might produce the inability to breathe?

Answers

Damage to the phrenic nerve might produce the inability to breathe.

What do you mean by Nerves?

Nerves may be defined as a pile of axons outside the central nervous system, surrounded by a sheath of connective tissue to form a cordlike structure.

The phrenic nerves are responsible for the movement of the diaphragm during the process of breathing. This movement of the diaphragm plays a crucial role in the inhalation and exhalation of air.

Therefore, damage to the phrenic nerve might produce the inability to breathe.

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answer correctly please to get the crown thingy!!!!

Answers

Tiktaalik is a mix of characteristics of fish and of tetrapods suggest that it represents one of the moments in the transition between fish and tetrapods.

What is tiktaalik?

Tiktaalik roseae  also known as the fishapod and is a 375 million year old fossil fish that was discovered in the Canadian arctic in 2004. Its discovery lighten on a pivotal point in the history of life on earth as when the very first fish ventured out onto land.

Early tetrapods such as Acanthostega and Ichthyostega, known from fossils about 365 million years old.

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Can someone please help me please I’m stuck on this question!!!

Answers

Answer:

neptune

Explanation:

Whoch of the foleing is likely to cause human immigration into a region?

I. Job oppertunities in new region
II. Lower possibikitg of persuation in the new region
III. Less environmental disruption in the new region

A. I only
B. II only
C. I and III only
D. I, II, and III

Answers

Answer:

(D.) because if a human finds better places to be, for various reasons they will migrate to reach these New Regions.

Glycine (C2H5NO2) is added to a growing peptide chain containing methionine (C5H11NO2S) and alanine (C3H7NO2). Which of the following peptide chain orientations best displays the growing chain and peptide bond between the amino acids?

Answers

Answer:

First Image

Explanation:

Amino acid order is NCC (Nitrogen, alpha carbon with R group attached, and carboxy group).

If we start with methionine, then we write its nitrogen, then alpha carbon and then carboxy and then alanine's nitronge, alpha, carboxy, and end with glycine nitrogen, alpha and carboxy.

I have labelled the "R" groups to show amino acids. First is methionine, then alanine and then glycine.

when our solar system formed, what type of planets formed toward the center? What type formed further out?

Answers

rocky planets towards the center, gassy formed further out.

what happens during meiosis I and meiosis II?

Answers

Answer: In meiosis I, homologous chromosomes partitioned, whereas in meiosis II, sister chromatids isolated. Meiosis II produces 4 haploid girl cells, though Meiosis I produces 2 diploid girl cells. Hereditary recombination (crossing over) as it were happens in meiosis I.

Explanation:

I dont know its onlyy

Hows my physique looking?
Im 15 years old, ive been consistently going to the gym for 7 months now, and im completely natty (not even creatine)

Answers

Answer:

7 MONTHS?! Bro that's a lot

Explanation:

What happens after
transcription?
A. The DNA strand breaks apart.
B. The DNA strand dissolves.
C. The DNA strand rejoins.
D. The DNA strand unwinds completely.

Answers

A. The DNA Strand breaks apart

Slove this easy question out.. Fill the blank out

Answers

The answer is breathing

Lab: Magnetic and Electric Fields
Assignment: Lab Report

Answers

According to the attachment, magnetic and electric fields are generated by electromagnetic forces that can be proved by hypothesis testing, it is recorded in the lab report.

What is the scientific method?

The scientific method is a series of steps to obtain information about a given question from the real world.

Hypothesis testing refers to the design of an experiment to confirm or reject a plausible explanation about a natural phenomenon.

In this case, the hypothesis may be 'Earth contains in its core geomagnetic forces'.

Moreover, a lab guide is a handbook where we can record the information after the experimental procedure.

The key results are finding obtained from experimentation that can be used to confirm or reject my working hypothesis.

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Answer:

lab report attached

Explanation:

The parasite ___________ can be spread in water supplies, water parks, and community swimming pools.

Answers

Answer:

The answer is cryptosporidium.

Explanation:

can be transmitted byCryptosporidium infection occurs due to cryptosporidium parasite that follows a fecal-oral route of transmission.Drinking contaminated waterSwimming in contaminated water and swallowing water accidentally

which tides are the highest?

Answers

Answer:

Technically, there is no such thing at what tides are the highest because they are formed by water in the ocean/sea and we have no names to them because they are not an organism and they are an abiotic factor. Though, I believe the highest tide(s) in the world are in Canada. As big/high tides are usually nicknamed or called: "King Tide", "Solar Tides", "Spring Tides", etc.  to decribe the highest tides.

Explanation:

Tides are created by the gravitational forces on Earth by the Moon and the Sun, together. Hope this helps! I tried my best to help you out :)

when heart muscle cells remain in the g0 stage , why might it be important for cardiac function

Answers

Answer:

When heart muscle cells remain in the g0 stage it is important for cardiac to function because as cardias function is to pump the heart if it stop pumping their won't be passing of the blood in the body.

Which of these is true about the size of the Sun?
A.
The Sun is about the same size as Earth.
B.
The Sun is about the same size as Jupiter.
C.
The Sun is much smaller than Jupiter.
D.
The Sun is much larger than Earth.

Answers

Answer:

D

Explanation:

because 1.3 million earths could fit in the sun

Answer:

D

Explanation:

the sun is much larger than earth.

This weather map showed the temperature (in °F) in the United States on a winter
day. It also includes two pressure systems, labeled "H" and "L." Explain where
weather fronts are most likely located, and predict the weather at each pressure
system.

Answers

Answer:

so the H is at where the red and yelow is and the L is at where the blue and green are.

Explanation:

hope this helps

where does each strand of DNA from the parent molecule end up?​

Answers

DNA replicates itself, so no, unlike what it may seem, parent organisms do not loose their DNA. Before the fecundation process, a cool process similar to miosis happens, it is called meiosis. During meiosis the parent chromosome will duplicate it self and break down each of its 46 chromosomes into 4 different new formed cells, which will become the sperm and egg cells. Each of these egg or sperm cells will be different from eachother, which is how you get siblings that don't look alike, however they will contain a copy of the parent's genetic information.

In conclusion;

In the creation of offspring, the copy of the parent's DNA breaks apart into 4 different pieces which will form sperm or egg cells.

Most marine invertebrates are osmoconformers. This means that:.

Answers

They have the same osmolarity as their surrounding environment.

Why is water considered a renewable natural resource?

because only surface water can be used for human purposes
because the amount of freshwater is unlimited and should be used freely
because water is continuously cycled from land to the atmosphere and back
because once we use up a source of freshwater it is gone forever

Answers

Answer:

Water is continuously cycled from land to the atmosphere and back.

Explanation:

Water is considered a renewable natural resource because of the water cycle. Water from streams, rivers, oceans, seas, ponds, and etc undergoes evaporation from land to the atmosphere. It later passes through the process of condensation; and come back in the form of precipitation.

A researcher uses the chemical inhibitor cyanide to reduce atp production in a neuron. What would be one effect of preventing atp production?.

Answers

Answer:

Disruption to the normal "resting" distribution of potassium and sodium ions

Explanation:

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