What type of reaction is represented by the following chemical equation? Explain your answer. 2Na + 2HCl → 2NaCl + H2 + heat

Answers

Answer 1

Answer:

This when the metal react with acid.

Explanation:

This is because the HCl is the chemical symbol for hydrochloric acid and Na is the symbol for sodium and when these 2react it forms

sodium chloride + hydrogen + heat


Related Questions

Pioneer species move into an area after which event? the formation of a climax community a disturbance that forms new land without soil a disturbance that clears away all plants the enrichment of soil by plants

Answers

Pioneer species move into an area after a disturbance that forms new land without soil.

Pioneer species are the first organisms to inhabit a region that has experienced a primary succession.

How do pioneer species arrive?

Primary succession begins in barren areas, such as on bare rock uncovered by a retreating glacier.

The first residents are lichens or plants that can survive in such an environment. Over hundreds of years these “pioneer species” transform the rock into soil that can support simple plants such as grasses.

Thus, Pioneer species move into an area after a disturbance that forms new land without soil.

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Answer: ( B ) - a disturbance that forms new land without soil

Explanation:

Which country would most likely be affected by a typhoon?.

Answers

Answer:

The Philippines.

Explanation:

The Philippines receive the brunt of the landfalls, with China and Japan being less often impacted.

Which two animals use echolocation? bats and humans bats and dolphins dolphins and humans dolphins and butterflies.

Answers

The two animals which use echolocation are bats and dolphins.

Both hunt their prey by articulating high-pitched sounds and listening for the echoes.

What is echolocation?

Echolocation is a method used by bats, dolphins and other animals to select the location of objects using reflected sound. This allows the animals to move around in pitch darkness, so they can guide, hunt, identify friends and enemies, and avoid obstacles.

Thus, bats and dolphins are two animals that use echolocation.

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Answer:

Bats and Dolphins is the correct answer

Explanation:

What are 'prokaryotic organisms'? What are some examples?

Answers

Explanation:

Prokaryotic organisms are type of cells that are clearly different from eukaryotic cells (human or plant cells), since they lack nucleus and other type of organelles and differ with size. ( some of them have flagella which helps these cells to move)

Example: Any type of bacteria can be considered as a Prokaryotic cell

Prokaryotic organisms are organisms that lack a true nucleus or in other words that have a primitive nucleus. This includes bacteria, E-coli, etc.

What is the difference between prokaryotes and eukaryotes?

Eukaryotes are the organisms that have a well developed nucleus. They also have membrane bound cell organelles. These are generally multicellular.

Prokaryotes have a primitive nucleus, and the organelles are also not membrane-bound. These are unicellular.

Prokaryotes are divided into bacteria and archaebacteria. Most of them are small, single-celled and relatively simple. Example cyanobacteria, bacteria, E-coli, etc.

Thus, the organisms like bacteria, which lack a true nucleus are called prokaryotes.

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If you live in the southern hemisphere, what season would you be experiencing in position this diagram?
A)
Fall
B)
Summer
C)
Winter
D)
Spring

Answers

C) Winter.

I used someone else's answer and it was incorrect so I did it myself

Answer:

it is winter

Explanation:

i took the class

PLEASE HELP!!
How does Pavan believe we should think about the value of a mangrove tree?

Answers

Answer:

who is pavan. value???

Explanation:

How does the carbon dioxide necessary for photosynthesis enter plants? a. through their roots b. through openings in the leaves called stomata c. the plants produce their own complete supply d. none of the above please select the best answer from the choices provided a b c d

Answers

The process by which plants make their own food is called photosynthesis. The raw materials of it are carbon dioxide coming from stomata, water and sunlight.

What is stomata?

Stomata is the opening for gaseous exchange and transpiration, present in epidermis of leaf.

Stomata are provided by two guard cells, which shrink and swell in order to open or close the stomatal pore respectively.

The carbon dioxide necessary for photosynthesis enter plants through these openings called stomata.

Thus, option b is correct.

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Why is using bacteria to produce insulin such an exciting prospect?.

Answers

Using bacteria to produce insulin such an exciting prospect because insulin is inserted into bacteria's body.

Why is using bacteria to produce insulin such an exciting prospect?

Use of microorganism for the production of industrial products is called biotechnology. Insulin is also produced with the help of biotechnology and genetic engineering processes.

So we can conclude that using bacteria to produce insulin such an exciting prospect because insulin is inserted into bacteria's body.

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Describe two effects that ingesting microbeads has on aquatic organisms.

Answers

Answer:

micro-beads can cause blockages in the digestive tracts of aquatic organisms.

  This can prevent digestion of food hence the organism will eventually die of starvation.

micro-beads can increase organic matter in a pond hence killing the aquatic organisms present.

  This increases the number of decomposers which grow rapidly and use a great deal of oxygen during their growth and lead to depletion of oxygen as the decomposition process occurs. A lack of oxygen can kill aquatic organisms.

Explanation:

What happens if the amount of withholding taken from your pay is greater than the amount you owe in taxes?

Answers

Answer:

When it comes to taxes, less isn't always more because If you don't withhold enough from your paycheck, you may end up surprised at how much you owe Uncle Sam at tax time. And the chances that you are under-withholding taxes are higher than you may think.

Explanation: A 2018 report by the Government Accountability Office (GAO) suggested that a fifth of taxpayers might owe taxes in 2019 due to under-withholding.1 The concern was particularly significant that year due to changes in the 2017 Tax Cuts and Jobs Act. The updated W-4 form from the Internal Revenue Service (IRS) was fully implemented by 2021, and for some, those changes came as a surprise in the form of a more expensive tax bill.

However, no matter what tax year, it's important to withhold the correct amount from your paycheck to avoid underpaying the government.

If the amount of withholding taken from one's pay is greater than the amount owed in taxes, the taxpayer will receive a refund when they file their tax return, as described in Option A.

What is a tax refund?

The amount of tax withheld is based on the employee's income, marital status, and the number of allowances they claim on the form, and the employer then withholds the appropriate amount of tax from the employee's pay and sends it to the IRS on their behalf. At the end of the year, the employee must file a tax return with the IRS, which calculates the total amount of tax owed for the year. If the amount of tax withheld from the employee's pay is greater than the amount they owe in taxes, they will receive a refund for the difference.

Hence, the taxpayer will receive a refund when they file their tax return that is present in option A.

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question is incomplete, complete question is below

What happens if the amount of withholding taken from your pay is greater than the amount you owe in taxes?

A)the taxpayer will receive a refund

B)will enjoy

3. Algae makes energy-rich carbon compounds through
photosynthesis.
4. A volcano erupts.
5. Carbon dioxide dissolves in rainwater.
<
6. Humans use gasoline to power their cars.
7. Organisms carry out cellular respiration to release
energy from food molecules.
Check Answer

Answers

A complementary process in nature either adds (options 3, 6, and 7) or removes ( options 4 and 5) carbon dioxide from the atmosphere.

Complementary processes and it's benefits

The processes that leads to the addition of carbondioxide back to the atmosphere include the following:

The eruption of volcanoes.

Cellular respiration carried out by organisms to release energy from food molecules.

The use of gasoline to power cars

The processes that leads to the removal of carbondioxide from the atmosphere include:

The production of energy-rich carbon compounds through photosynthesis.

The dissolution of carbondioxide in rainwater.

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What part of the continental glacier moves the fastest?

Answers

Answer:

The centre

Explanation:

The reason is that there's less friction at the center.

Hope this makes sense! If you have further questions, let me know!

- profparis

In a population of pea plants such as the one below, bees and other pollinators prefer to land on purple colored flowers. Over generations, more and more purple flowers successfully reproduce due to this pollinator preference. Which of the following statements accurately describes what is happening to the pea plants over time?



Question 2 options:

Natural selection causes evolution in the population of pea plants and leads to increased overall variation.


Natural selection causes evolution of individual pea plants and leads to increased overall variation.


Natural selection causes evolution in the population of pea plants and leads to an increase in favorable adaptations.


Natural selection causes evolution of individual pea plants and leads to an increase in favorable adaptations.

Answers

Answer:

Natural selection causes evolution in the population of pea plants and leads to an increase in favorable adaptations.

Explanation:

The flowers will evolve to keep that purple trait in order to continue their population growth, hence why it is not individual evolution but as a population. Also since the purple color is a favorable trait it will lead to an increase in favorable adaptations and will decrease variation.

How long does a koala joey stay in its mom’s pouch after birth?.

Answers

Answer:

Six months :D

Explanation:

Question 8 of 10
A forest fire burns down all of the trees in a large forest. The animals that
lived in the trees are forced to move to other areas. What kind of disturbance
is this?
A. Seasonal
B. Catastrophic
C. Cyclical
O D. Small-scale

Answers

B is the answer because the fire caused them to move

Which of the following can cause beach erosion? Select the two correct answers. (1 point)

-ocean currents
-shifting shorelines
-sandbars
-dune vegetation
-storm waves

Answers

Answer:

one.

Which of the following is one effect storm waves have on a beach?

movement of beach sand to a sandbar

2.

How are waves related to shifting shorelines?

Waves can cause shifting shorelines.

3.

Which of the following can cause beach erosion? Select the two correct answers.

storm waves

ocean currents

Explanation:

if you dont believe that these are the answers thats all right there 200% correct you can check for yourself

Strom waves and ocean currents cause beach erosion.

What is beach erosion?

Sand is lost due to beach erosion, which is often caused by a mix of wind and water movement. Sand is moved to deeper water or to another coastal location by being scooped up off the beach. Beaches seem shorter and lower as a result of this process.

Sand particles make up the majority of beach deposits, and waves can quickly dissolve them.

These deposits are made up of terrestrial silt transported to the coast by rivers, marine sediment reworked from offshore deposits onto the coast, and sediment created by wave erosion of coastal landforms.

Therefore, Strom waves and ocean currents cause beach erosion.

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In a mouse, the axis that determines the body pattern from the nose to the tip of the tail is.

Answers

Answer:

antero-posterior

Explanation:

the axis that determines the body pattern from the nose to the tip of the tail

A specialist who treats the genitourinary system of males is a/an.

Answers

The answer is a urologist, a urologist specializes in diagnosing and treating diseases and disorders of the urinary system of females and the genitourinary system of males (ur means urine and -ologist means specialist). The term genitourinary refers to both the genital and urinary organs.



Called the "Fourth Force" What is the most dominant influence in the field of psychology, including

psychotherapy

Answers

Answer:

Transpersonal psychology, as the fourth force in psychology, has emerged from humanistic psychology (the third force) in much the same way that humanistic approaches emerged from their behavioral and analytic foundations

hope this helps :)

Q7 What can we hear but cannot touch?​

Answers

Answer:

sound: because sound we can hear it, when someone says something to you, you can hear it but you cannot you cannot touch it

What is the difference between gametes and body cells.

Answers

The number of chromosomes

there are three categories of chemical reactions based on changes in chemical structure. The first category is

Answers

Answer: Biochemical Changes

Explanation: Chemists separate chemical changes into three different categories: biochemical changes, organic chemical changes, and inorganic chemical changes. Biochemical changes are the changes that happen within the bodies of living organisms.

A client has recently received a pneumococcal vaccine and the client's B cells are consequently producing antibodies. Which cells may enhance this production of antibodies

Answers

Lymphocytes are the cells that enhance production of antibodies.

Which cells may enhance production of antibodies?

Lymphocytes are the cells responsible for immunity. Lymphocytes are divided mainly into B and T cells. B lymphocytes produce antibodies that recognize antigen and attach themselves to them.

So we can conclude that Lymphocytes are the cells that enhance production of antibodies.

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Phase of the moon where only a very small part of the lit surface is seen from Earth.

O Gibbous

O Quarter

O Crescent

O Full​

Answers

Answer:

quarter, if i am correct. i am pretty sure that the crescent is just a little bigger.

The phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.

What is the phase of the moon ?

Lunar phase is the phase of moon which is viewed from the earth, the lunar phase is also known as moon phase is a shape of moon's directly sunlit portion and it can be expressed quantitatively.The current moon phase for today is the new moon phase.

The moon is known as earth's only natural satellite and combinedly with earth it forms the earth-moon satellite system.

The size of moon is one quarter of earth in diameter. It is fifth largest satellite in the solar system.

The distance of moon from earth is 384,400 km. The radius of moon is 1,737,4 km.  The gravity of moon is 1.62 m/sec^2.

The total surface area of moon is 3.793×10^7 km square and it's surface pressure is 10^-7 Pascal.There are total 8 phase of moon and these are new moon, first quarter, waxing gibbous, third quarter and waning crescent.

Therefore the phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.

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The heart is a cone-shaped muscular organ located within the.

Answers

Answer:

mediastinum of the thorax.

Explanation:

Mark brainliest

mediastinum, or medial cavity, of the thorax.

If the human diet continues to be refined, what changes might evolve in our teeth?

Answers

Answer:

The average human diet is a lot different than just a few decades ago, let alone thousands of years ago. Such a drastic change in diet appears to be having some adverse effects on our teeth and jaw, which evolved to chomp nuts and other harder foods.

Explanation:

What three identifying features of a chromosome are used to pair homologous chromosomes in a karyotype?.

Answers

Answer:

To "read" a set of chromosomes, scientists use three key features to identify their similarities and differences:

Size. This is the easiest way to tell chromosomes apart.

Banding pattern. The size and location of Giemsa bands make each chromosome unique.

Centromere position. Centromeres appear as a constriction.

Explanation:

An individual suffers a blood clot in an artery that delivers blood to his leg. The leg begins to take on a blue hue, becomes colder than the rest of his body and he experiences numbness in the leg. He is most likely experiencing.

Answers

Embolus
If not then pulmonary embolism I think

You sample 1,000 individuals from a large population for the mn blood group, which can easily be measured since co-dominance is involved (i.e., you can detect the heterozygotes). they are typed accordingly:

Answers

Co-dominance in the mn blood group means that both allele characteristics are expressed in the organism.

What is co-dominance?

Co-dominance is a form of inheritance whereby two or more alleles for a given trait are both dominant such that when they both appear in an organism, the phenotype of that organism reflects the characteristic of both traits.

Co-dominance is usually seen in blood group typing.

In blood group typing, there are two alleles that A and B which are both dominant. When both alleles are present, the blood group is AB and the phenotype of the organism is a result of the properties of both alleles, thus allele A and B are said to be co-dominant.

Therefore, co-dominance in the mn blood group means that both allele characteristic are expressed in the organism.

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The most common human health response to air pollution is:.

Answers

Answer:

coughing

Explanation:

your lungs don't like the air pollution

Other Questions
In a short response, determine which line of "If" Atticus would most likely impart on Jem or Scout. Persuade the reader by explaining why the line you chose reflects the best advice. Provide at least two relevant details from the texts to support this claim.Good response gets 20 dollar gift card. Which statement describes characteristics of a convex lens? A convex lens diverges light and curves inward. A convex lens diverges light and curves outward. A convex lens converges light and curves inward. A convex lens converges light and curves outward. Simplify (32-2) + (52+5-1) Robert had some friends at his house after school. His mom cut up 2 pies for them to eat. If she cut each pie into fourths, how many pieces will there be? Choose the model that represents the answer.1/48/82/84/4NO LINKS!!!!!) If the freezing point depression for a solution is 2. 5c and kf = 4. 5c/m, what is the molality of the solution? What is the climate and vegetation like in the temperate woodland? Question 9 (Fill-In-The-Blank Worth 12 points)(HC)Memories of a MemoryHave you ever witnessed something amazing, shocking or surprising and found when describing the event that your story seems to change the more you tell it? Have you ever experienced a time when you couldn't really describe something you saw in a way that others could understand? If so, you may understand why some experts think eyewitness testimony is unreliable as evidence in scientific inquiries and trials. New insights into human memory suggest human memories are really a mixture of many non-factual things.First, memory is vague. Imagine your room at home or a classroom you see every day. Most likely, you could describe the room very generally. You could name the color of the walls, the floors, the decorations. But the image you describe will never be as specific or detailed as if you were looking at the actual room. Memory tends to save a blurry image of what we have seen rather than specific details. So when a witness tries to identify someone, her brain may recall that the person was tall, but not be able to say how tall when faced with several tall people. There are lots of different kinds of "tall."Second, memory uses general knowledge to fill in gaps. Our brains reconstruct events and scenes when we remember something. To do this, our brains use other memories and other stories when there are gaps. For example, one day at a library you go to quite frequently, you witness an argument between a library patron and one of the librarians. Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk rather than the actual participant simply because it is recreating a familiar scene. In effect, your brain is combining memories to help you tell the story.Third, your memory changes over time. It also changes the more you retell the story. Documented cases have shown eyewitnesses adding detail to testimony that could not have been known at the time of the event. Research has also shown that the more a witness's account is told, the less accurate it is. You may have noticed this yourself. The next time you are retelling a story, notice what you add, or what your brain wants to add, to the account. You may also notice that you drop certain details from previous tellings of the story.With individual memories all jumbled up with each other, it is hard to believe we ever know anything to be true. Did you really break your mother's favorite vase when you were three? Was that really your father throwing rocks into the river with you when you were seven? The human brain may be quite remarkable indeed. When it comes to memory, however, we may want to start carrying video cameras if we want to record the true picture.Part A and Part B below contain one fill-in-the-blank to be used for all three question responses. Your complete response must be in the format A, B, C including the letter choice, commas, and a space after the commas.Part A:Which of the following best explains what the title "Memories of a Memory" means"?Fill in blank 1 using A, B, or C.Our memories are not as real or factual as we think they are.Our memories from childhood are not necessarily correct.Some people have memories that are not based in fact.Part BSelect one quotation from the text that supports your answer to Part A. Add your selection to blank 1 using F, G, or H.Our brains reconstruct events and scenes when we remember something.Later, when telling a friend about the event, your brain may remember a familiar librarian behind the desk.Research has also shown that the more a witness's account is told, the less accurate it isSelect one quotation from the text that supports your answer to Part A. 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