Which best describes how to classify water?
A It is an element because it is made
from a pure substance.
В
It is a compound because it is made
of a single kind of molecule.
© It is a mixture because it is composed
of more than one molecule.
D It is a solution because it is a
homogenous mixture of different
compounds.

Answers

Answer 1

Answer:

D

Explanation:

Water is a compound and scientifically known as H[tex]_{2}[/tex]0 (2 hydrogen atoms and 1 oxygen). Therefore, the answer is...

Not A because water is not an element of one pure substance; rather, it is a compound and can be broken down into two pure substances.Not B because the statement contradicts itself: a compound is made of different atoms and, thus, different molecules.Not C because a mixture contains different substances that are physically -- not chemically -- combined. And as we know, water is a compound, which means that its atoms are chemically bonded to one another. Or else it would just be 2 free hydrogen atoms and 1 oxygen.D (yay!) because it is not the *most* accurate, but simply the best description of those provided. Water can be described as a homogenous (uniform in appearance) mixture because, minus the "mixture" part, that's what it is, essentially: a substance that looks pure but is really made of up different molecules.

Ngl this was tricky, but I hope this helps :)


Related Questions

How is UV light sensitive yeast related to the cell cycle/mitosis? please help!!!?

Answers

Answer:

TU PUEDES ;>

Explanation:

Gene expression in all organisms depends on protein synthesis. What is the last stage of protein synthesis, in which amino acids are assembled by tRNA?

Answers

Answer:

Gene expression in all organisms depends on protein synthesis. What is the last stage in protein synthesis, in which amino acids are assembled by tRNA? translation. The steps in proteins synthesis are identical in all six organisms.

How are gravity and friction similar?

Answers

Answer:

gravity and friction is similar cause one of the main things they have in common is when you have friction that's gravity pulling you or they thing down.

Explanation:

to be honest I just thought of this of the top of my head so I hope it helped in some ways.

Which fossil in the rock layers below is probably the oldest? Explain your answer.

Answers

Answer:

Fossil C

Explanation:

Lowest under ground, more time passed.

Scientific developments have made forensic science a stronger discipline.

True
False

Answers

Answer:

Answer of this qurstion is true

This question is true

Answer each with a T for true of a F for false

Answers

True I’m sure of it

Can someone help me with this one question please

Answers

The answer should be A

Guys need your help!!! True or False???

If you have a reoccurring flu virus, your body’s memory B cells can help fight off the same virus.

Why is it T or F. Do not just restate statement.

Thanks!

Answers

Answer:

True, your body will develop antibodies against it

Explanation:

brainliest pls?

why is it important to classify the millions of species on earth

Answers

There are millions of species that exist on Earth.  This helps in organizing each specie according to the characteristics, and traits. The classification is done to show the hierarchy and focuses on the relationships that the organisms possess with other organisms about evolution.

PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!

What is the name of this table?

Answers

Answer: Periodic table

Explanation:

Answer: Periodic table of the elements

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends.

3. Are vaccines available to prevent HIV and cancers?
(3)

Answers

es | HIV.gov
There is currently no vaccine available that will prevent HIV infection or treat those who have it. However, scientists are working to develop one.

Look at the speedometer at the top. What do you notice about the speed when the skater goes from a height of 6m down to 0m and back up to 6m?

Answers

Answer:

First increases then decreases.

Explanation:

The speed of skater tends to increases when it moves from high elevation of 6 m to the low height area due to sloppy region while on the other hand, when the skater moves again from 0 m or from the ground level to 6 m height its speed decreases when reaches to the highest point. First the speed of the skater increases due to moving in the direction of gravity while on other hand, the speed of the skater decreases due to movement of skater against the gravity of earth.

Can humans turn into fossils why or why not?

Answers

Answer:

Certain types of animals are more likely to end up as fossils. ... On the other hand, it turns out humans are actually fairly well-suited to becoming fossils. “Mammals have a very good record, because teeth make fantastic fossils,” says Norell. “They're incredibly hard, incredibly resilient.  

Explanation:

Answer:

well probably we humans are almost, practically fit for fossils so we have a chance to turn into a fossil

Explanation:

Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?

Answers

Answer:

I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.  

Explanation:

The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.

Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.

Which of these types of muscles are striated? Check all of the boxes that apply.
1) skeletal muscles
2) cardiac muscles
3) smooth muscles

Answers

Answer:

Muscle Types: Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not. Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.

Answer: skeletal muscles  & cardiac muscles

Explanation: Skeletal and cardiac muscles are striated. Smooth muscles are not.

please help I'm stuck on this​

Answers

Answer:

Hmm I don't know really I saw a video about this but I don't remember it

pls help me I'll give 15​

Answers

Answer:

i dont care

Explanation:

i dont know

What option would be a good adaptation for an animal in a dense RAINFOREST? *
A. heavy body
B. ability to sprint
C. ability to blend with multiple colors and patterns

Answers

Answer:

c because they need to live instead of dying. bc from other bigger animals they can see it and eventually die so.

Which is not a property of an acid?
A)
tastes sour
(B) has a high pH
(C)reacts with metals
D contains the element hydrogen

Answers

It is B. Don't open that link. They've posted same link on multiple questions so I assume it's not safe.

how was science relevant to the world​

Answers

Answer:

Science helped create almost everything today, medicinces,drought resistant food, technology, further education in doctoring, electricity etc.  

Explanation:

Compare marshes, swamps, and bogs.​

Answers

Marshes, swamps, and bogs are all types of wetlands. This means that their soil can be saturated either permanently or seasonally. As wetlands, they are all characterized by high levels of biodiversity. Swamps tend to have a larger proportion of surface water than marshes and, in North America, are characterized by the presence of trees. Bogs have acidic groundwater as a result of their surface water resulting mainly from precipitation

Answer:

Marshes: Have extremely good ability to support grasses, reeds, flowers, and insects due to their high nutrient soil. They usually are around lakes/rivers/and other bodies of water. They are frequently covered in water however not always covered in water.

Swamps: Have extremely good ability to support wood like plants, trees. They are also permanently covered/submerged in water all year around.

Bogs: Basically they are a gravesite of a dead plant life. When a lake fails to support itself it turns into a bog, its plant life dies off and will start rising to the top creating almost a film. However even though the plant life dies the insects, reptiles, and Amphibians thrive.

Explanation:

Hope this helps!

UNA FUENTE DE ALIMENTOS QUE SOLO LAS ARDILLAS SON IMPACTADAS TANTO EN EL ECOSISTEMA ??

A FOOD SOURCE THAT ONLY THD SQUIRRELS ARD IMPACTED THE ECOSYSTEM SO MUCH??

Answers

English please
I do not understand this gibberish

help please 30 points will give brainliest
Plants release the waste ___________ during cellular respiration and ____________ during photosynthesis.

fill in the blanks

Answers

Plants release the waste carbon dioxide during cellular respiration and oxygen during photosynthesis.

Some evidence on the safety of vaccines.

Answers

Answer:

The safety an​d effectiveness of vaccines​ are under constant study. Because vaccines are designed to be given routinely during well-child care visits, they must be extraordinarily safe. Safety testing begins as soon as a new vaccine is contemplated, continues until it is licensed, and is monitored indefinitely after licensure.

Explanation:

Answer:

well

Explanation:

Before a vaccine is ever recommended for use, it’s tested in labs. This process can take several years. FDA uses the information from these tests to decide whether to test the vaccine with people.

During a clinical trial, a vaccine is tested on people who volunteer to get vaccinated. Clinical trials usually start with 20 to 100 volunteers, but eventually include thousands of volunteers. These tests can take several years and answer important questions like:

Name two types of a sexual
reproduction which occur in animals
giving one example in each case​

Answers

Answer:

Meiosis and Fertilization

sexual and asexual reproduction

WILL GIVE YOU BRAINLYEST!!

An increase in the variety of species in an ecosystem will help restore
stability to the ecosystem after a hurricane. True or False *

Answers

Answer:

True

Explanation:

There will be diversity of species and this in turn leads to stability of the ecosystem.

Explanation:

It is true know you have to give brilient

3. When you are fasting for this month, what does your body do at night after you've eaten?

Answers

Your body if you are fasting during the night is burning the extra fat to provide your body with energy

Answer:yo dada

Explanation:yo mama

Explain your reasoning I will give u Brainliest

Answers

Answer:

1. A

2. B

Explanation: #2 is B because sedimentary rocks have layers that you see in places such as canyons. Sedimentary rocks are made from grains so you can see that kind of texture in the image. Igneous rocks are made from the cooling and solidification of lava. They have that shiny texture.

Hope this helps! :)

Answer:

1. A

2. B

Explanation:

1. Igneous rocks are formed from by lava, Igneous rocks are various crystalline or glassy rocks formed by the cooling and solidification of molten earth material

2. Sedimentary rocks are formed from pre-existing rocks or pieces of once living organisms. They form from deposits that accumulate on the Earth's surface

The most likely reason(s) a metastatic tumor cell might lose its connection to the basal lamina would be: a change in the integrin proteins from the cell's surface. a change in the cadherin proteins on the cell surface. a change in connexins disrupting gap junctions. All of these choices are correct.

Answers

Answer:

A change in the integrin proteins from the cell's surface.

Explanation:

Integrin proteins' principal function is to attach the cell to the basal lamina. Also, they transmit signals from the extracellular matrix to the interior of the cell. A change in the integrin could result in loss of connection between the mutated cell and the basal lamina.

Cadherin proteins connect one cell to another. A change in these proteins will not result in the loss of connection between the metastatic tumor cell and its extracellular matrix. It most likely will affect the communication and adhesion of cells.

A change in connexins will disrupt the communication between cells but not the connection to the lamina basal. Connexins are transmembrane proteins that connect one cell to another with gap junctions that allow the passage of different components from cell to cell.

what makes one organism different from any other organism

Answers

Answer:

Their DNA.

Explanation:

Our DNA is the blueprint of how we are made. This separates us from other organisms.

Answer:

because of DNA and non similarities inherited by the parent

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