A phase change diagram for water is shown below. The star on the diagram represents the temperature and pressure of some water vapor that a scientist has placed in a special container.
The scientist wants to make changes to the container that will allow the container to have some liquid water, some ice, and some water vapor at the same time. What change should the scientist make to the container?
A.
The temperature should not be changed, but the pressure should be increased.
B.
The temperature should not be changed, but the pressure should be decreased.
C.
The temperature should be increased, but the pressure should not be changed.
D.
The temperature should be decreased, but the pressure should not be changed.
Answers
The temperature should be decreased, but the pressure should not be changed.
What is Temperature and Pressure relation ?In contrast, as a gas's pressure falls, its volume rises as a result of the gas's ability to spread its particles farther apart. Because the volume of the gas has risen, weather balloons become larger as they ascend through the sky to lower pressure areas.
This is because when the atmospheric gas exerts less pressure on the balloon's surface, the inside gas expands until the internal and external pressures are equal.
Some of the early studies that established the quantitative relationship between the pressure and volume of a gas were done by the Irish chemist Robert Boyle (1627-1691).
Therefore, The temperature should be decreased, but the pressure should not be changed.
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Related Questions
The hardest question ever: What is truth?
Answers
List the differences of Eukaryotic and Prokaryotic cells.
- Thank you :)
Answers
Answer:
Eukaryotes are more complex they have a nucleus prokaryotes do not have a nucleus humans fungi plants and protists fall under Eukaryotes and bacteria is an example of prokaryotes
Explanation:
hope this helps :) this took me a while! :)
can someone make a story about calcium? pls help me
Answers
Answer:
um a story about Calcium? sure... Pls mark me brainliest!
Explanation:
Calvin Calcium was strong. Calvin Calcium was sturdy. Calvin Calcium had very good teeth. He
was a happy little boy and drank all of his Phenyl-Free. But one day all that changed. Here’s what
happened…
“I’m not going to drink my ‘milk’ any more,” said Calvin one morning at breakfast.
“Oooh,” said his mother, “then you can get your calcium from green, leafy
vegetables.”
“No,” said Calvin, “I’m not going to eat green, leafy vegetables either.”
“Oooh,” said his mother, “what will happen to Calvin?”
It wasn’t too long before Calvin found out.
In May, it was time for Calvin to have his dental check-up.
“Oooh,” said the dentist, “you have four cavities, Calvin. Have you
been eating foods with lots of sugar? Have you been forgetting to brush your teeth?
Maybe you haven’t been eating enough foods that give you calcium.” The dentist
filled the four cavities, and Calvin’s teeth were fine again. Calvin didn’t mind—too
much.
But in July, Calvin and his friends, Fred and Linda, were
building a tree fort.
They were almost done when, whoops, Calvin lost his balance and
tumbled to the ground!
“My arm hurts!” wailed Calvin.
“Oooh,” said his mother, running from the kitchen, “we’d better go
to the doctor!”
Doctor Smith felt Calvin’s arm very carefully.
“Oooh,” said the doctor, “you have a broken arm, Calvin.”
He put Calvin’s arm in a cast, and Calvin couldn’t go out to play for a long
time. He missed splashing in Fred’s pool to get cooled off on hot days. He
missed Linda’s birthday party. They played lots of neat games and had his
favorite low protein foods. But most of all, he missed playing with his friends.
He could hear them playing ball and roller skating every day.
Calvin went back to the doctor because it was
taking so long for his arm to heal.
“Oooh,” said the doctor, “it looks as if you haven’t been
eating foods with lots of calcium to make your bones strong.”
The Calvin Calcium Story
One morning Calvin said to his mother, “I’d like some of my ‘milk’ for breakfast.”
So that morning Calvin drank his ‘milk’. It tasted very good.
At lunch, Calvin said, “I’d like some green, leafy vegetables, please.”
So that noon, Calvin had green, leafy vegetables. They tasted very good too.
At dinner, Calvin said, “I’d like some green, leafy vegetables AND some ‘milk’, please.”
So Calvin had collard greens and lots of his ‘milk’ for supper. How good they tasted!
Calvin’s arm was almost healed now. Soon he would be able to join his
friends at the pool, on skates, and in their ball games.
When Calvin went to the dentist that fall, he had only one cavity. Calvin said
he had been brushing his teeth after eating AND eating foods that give him
calcium, especially his ‘milk’.
Calvin was again a strong, sturdy, happy boy—with very good teeth and strong bones!
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Interestingly, calcium seems to come in fifth place wherever it goes: It is the fifth most abundant element by mass in the Earth's crust (after oxygen, silicon, aluminum and iron); the fifth most abundant dissolved ion in seawater (after sodium, chloride, magnesium and sulfate); and the fifth most abundant element in the human body (after oxygen, carbon, hydrogen and nitrogen). It is, however, the most abundant metallic element in the human body, 99 percent of which can be found in our bones and teeth (about 2 lbs. of it!), according to Chemicool.
In its pure elemental state, calcium is a soft, silvery-white alkaline earth metal. It is important to note, however, that calcium is never found in this isolated state in nature, but exists instead in compounds. Calcium compounds can be found in a variety of minerals, including limestone (calcium carbonate), gypsum (calcium sulfate) and fluorite (calcium fluoride), according to Chemicool. Calcium makes up about 4.2 percent of the Earth's crust by weight.
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In order to isolate pure calcium, it must be extracted through electrolysis, a technique that uses a direct electrical current to separate elements from their naturally occurring sources. Once isolated, calcium is quite reactive and will form a grayish-white oxide and nitride coating when exposed to air.
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Calcium (Ca) is No. 20 in the periodic table of the elements, appearing just below magnesium in the same column (Group IIA) as the other alkaline earth metals (a group of metals that are more chemically reactive than most metals). Calcium comes from the Latin word "calx," meaning lime. This is not a reference to the fruit, but rather calcium oxide (CaO), the useful building material derived from heated limestone.
Calcium is extremely important to the human body. Not only is it vital for bones and teeth, but it assists in muscle movement by carrying messages from the brain to all our body parts. Cells in all living things must communicate with, or "signal," one another. Calcium ions act as vital messengers between these cells and are necessary in all multicellular life forms. They also assist in the release of hormones and enzymes.
In food, calcium is found in mineral form. Foods high in calcium include dairy products — such as milk, cheese and yogurt — and some vegetables, such as kale, watercress, spinach and broccoli. In order for calcium to absorb properly, it should be taken with vitamin D. Magnesium is also necessary for proper assimilation and use of calcium in the body. In fact, if we take too much calcium and not enough magnesium, it can cause problems in the body.
Lime, or calcium oxide, produces a brilliant, intense light when exposed to an oxyhydrogen flame, according to Chemicool. In the 1800s, before electricity was invented, this substance was used to light up the theater so actors truly performed "in the limelight" — hence the saying.
When turtles (typically pet turtles) don't have enough calcium circulating through their blood, they may get an ailment called Metabolic Bone Disease, commonly known as Soft Shell Syndrome. For a turtle to be healthy, the calcium to phosphorous ratio should be 2:1. When their calcium levels are low, however, the mineral is leached from their bones in the body's attempt to balance things out. The result is soft bones, weakness and a soft, deformed shell, and it often results in death. The disease can be prevented with a proper diet and adequate sunlight (or other appropriate lighting for reptiles).
Stalactites and stalagmites, the icicle-shaped formations found in underground caverns, are formed slowly over time by the build-up of calcite residue. This occurs when water seeps through the cracks in the ceiling of a limestone cave, dissolving and carrying along traces of calcite, the building material of limestone. As the water drips from the ceiling, this calcite residue begins to build up at the site of the drip, eventually resulting in icicle-shaped stalactites hanging from the cave ceiling. This water dripping from the stalactites then forms stalagmites on the ground
Describe the main difference between passive and active transport
Answers
Answer:
In Active transport the molecules are moved across the cell membrane, pumping the molecules against the concentration gradient using ATP (energy). In Passive transport, the molecules are moved within and across the cell membrane and thus transporting it through the concentration gradient, without using ATP (energy).
Explanation:
hope it is hopeful
while active transport requires energy to get done.
Outline the pathway of a breath of air from the nose to the alveoli.
Answers
Answer:
Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
Explanation:
Mark as Brainliest Answer
Air travels through the following structures on its path to the alveoli (the site of gas exchange): nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles.
What is breathing?The trachea (windpipe), which is further separated into bronchial tubes, receives it from there. Bronchioles are another division of the bronchial tube, the little alveoli structure is where the bronchioles eventually come to a stop.
Through our noses, we breathe air into our bodies, after then, it moves via the larynx, pharynx, and nasal cavity before entering the windpipe, also known as the trachea.
Therefore, air enters both lungs through bronchi that branch off of the trachea.
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What factors determine the type of rocks that forms underground?
Answers
Answer:
the two main functions are temprature and functions
someone can you plzzz give me a brainliest
Answers
Answer:
yes
Explanation:
Answer:
okay
Explanation:
Measuring Pulse
To take your pulse, you press your fingers against an artery near the surface of the body. What are you feeling and measuring when you take your pulse? Why can’t you take your pulse by pressing your fingers against a vein?
Answers
Answer:How long each heart beat are apart
Explanation:
the vein isnt conected to ur heart :P
If a purple-flowered, short-stemmed plant is crossed with a white-flowered, long-stemmed plant, would all of the purple-flowered offspring also have short stems? Why or why not? Plz give explanation
Answers
No. Not all of the offspring would have Purple-flowered, short-stemmed plant.
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant.
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant.
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant.
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant. Purple - dominant (P)
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant. Purple - dominant (P) Long/tall - dominant (T)
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant. Purple - dominant (P) Long/tall - dominant (T) White - recessive (p)
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant. Purple - dominant (P) Long/tall - dominant (T) White - recessive (p) Short - recessive (t)
No. Not all of the offspring would have Purple-flowered, short-stemmed plant. Only 50% of offsprings would have Purple-flowered, short-stemmed plant, and the other half would be Purple-flowered, tall/long-stemmed plant. Purple - dominant (P) Long/tall - dominant (T) White - recessive (p) Short - recessive (t) (P)(P)(t)(t) x (p)(p)(T)(t) <<< (Hömözygous Purple + Höm0zygous short * H0mòzygous white + Heterozygous Tall/Long)
zygous white + Heterozygous Tall/Long) (P)(p) (T)(t)
zygous white + Heterozygous Tall/Long) (P)(p) (T)(t) (P) (p)(t)(t)
zygous white + Heterozygous Tall/Long) (P)(p) (T)(t) (P) (p)(t)(t)=50 % purple flowered, tall/long-stemmed plant
zygous white + Heterozygous Tall/Long) (P)(p) (T)(t) (P) (p)(t)(t)=50 % purple flowered, tall/long-stemmed plant50% purple flowered, short-stemmed plant
zygous white + Heterozygous Tall/Long) (P)(p) (T)(t) (P) (p)(t)(t)=50 % purple flowered, tall/long-stemmed plant50% purple flowered, short-stemmed plantGenotype: Heterozygous Purple + Heterozygous Tall/long and Heterozygous Purple + H0mózygous short
zygous short Phenotype: Half of the offsprings are Purple-flowered, long-stemmed plant and other half Purple-flowered, short-stemmed plant
zygous short Phenotype: Half of the offsprings are Purple-flowered, long-stemmed plant and other half Purple-flowered, short-stemmed plant
The atoms of gaseous helium are
A.
close together, moving around one another.
B.
far apart, moving fast, and bouncing off the container walls.
C.
close together, vibrating in a rigid structure.
D.
not moving at all.
Answers
Lab Report
Evidence of Plate Motion
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_EvidenceOfPlateMotion_Alice_Jones.doc).
Introduction
1. What was the purpose of the experiment?
Type your answer here:
2. How does hot spot theory explain how the Hawaiian Islands formed?
Type your answer here:
Experimental Methods
1. What tools did you use to collect your data?
Type your answer here:
2. Describe the procedure that you followed to collect your data.
Type your answer here:
Data and Observations
1. Record your observations. Include a data table with the names of the volcanoes, their distance from Kilauea, and their ages.
Type your answer here:
2. Make a graph that shows the distance between the volcanoes and Kilauea versus the ages of the volcanoes. You may plot your data on the template provided or use a spreadsheet program to make a graph.
Type your answer here:
However get 100 points and brainlest
Answers
Sorry but you have to actually do the lab from the assignment page to answer these questions.
I cant do it since I don't know what we know from the lab.
If you can do it that would work out.
Sorry : /
Answer: We cant answer the questions without knowing what the other details of the lab are.
Explanation:
What best describes direct democracy?
1. A government where people vote on laws and rules
2. A government where people vote for representatives
3. A government where citizens rule
4. A government where representatives make laws
Answers
The diagram shows an animal-like protist.
This is most likely which type of protist?
a sarcodine because it has a nucleus
a sarcodine because it has a pseudopod
a parasite because it has cilia
a parasite because it has a flagellum
Answers
Answer:
a sarcodine because it has a pseudopod
Explanation:
What does it mean when two objects are said to exert a mutual force of attraction?
A. Each takes turns attracting the other. B. They attract each other at the same time.
C. A third object takes turns attracting each of them.
D. A third object attracts them both at the same time.
Answers
Answer:
B
It says "mutual", so both objects are attracting at the same time. In addition, I do not believe it is possible for objects to take turn acttracting each other so I believe A is false. I think C and D are wrong because a third object is not related to any of these choices. It also explicitly states "two objects" and when it says mutual, it means they are attracting each other.
Describe the path cereal takes from eating with the mouth to glucose in the body cells.
Answers
Answer: The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine—which includes the rectum—and anus. Food enters the mouth and passes to the anus through the hollow organs of the GI tract. The liver, pancreas, and gallbladder are the solid organs of the digestive system.
Explanation:
cereal goes into mouth and it broken down after going through the GI tract (gastrointestinal tract) … this chemical reaction gives you energy and nutrients from said cereal
Number 1 of the cell in the image below is the
Answers
Answer:
it looks like chloroplast is this a plant or animal cell?
Explanation:
what are the uses of compases?
Answers
Answer:
to tell directions
Explanation:
find your way
Answer:
Locate places
All of the following are advantages of using solar energy EXCEPT -
A. It reduces the dependence on fossil fuels.
B. It is a form of coninuous power.
C. It has zero carbon dioxide emissions.
D. it is a renewable energy source.
I don't know what subject this is! But PLEASE HELP ME
Answers
Answer:
I belive it would be B
Explanation:
All of the following are advantages of using solar energy except it is a form of coninuous power and it is responsible for it reduces the dependence on fossil fuels. Thus, option B is correct.
What is fossil fuel?
A fossil fuel has been hydrogen that contain the material found in the nature in the earth's crust from the remain of the dead plants and animals that has been extracted and burned as the fuel. Fossil are natural source of energy, it is made from decomposition of plants and animals. Fossil fuels are found in the earth's crust and it must contains carbon and hydrogen which could gives energy by the burning. Natural gas usually found in pockets above oil deposits. It is also found where natural oil is found.
Coal, oil including natural gas are the best examples of the fossil fuels. Coal has been a material usually found in the sedimentary rock deposits where rock and plants are buried from long time. Oil has been originally found as the solid material between layers of sedimentay rocks, like shale. This material has been heated and converted into a gasoline.
Therefore, All of the following are advantages of using solar energy except it is a form of coninuous power and it is responsible for it reduces the dependence on fossil fuels. Thus, option B is correct.
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is the average temperature of earth increasing? How do you know?
Answers
Answer:
yes
Explanation:
Increased about 1 degree C
How are liverworts and hornworts different?
Answers
Answer:
The main difference between liverworts and hornworts is that the liverworts contain lobate, green, leaf-like structure whereas the hornworts contain narrow pipe like structures
Explanation:
Answer:
The gametophyte stage is the dominant stage in both liverworts and hornworts; however, liverwort sporophytes do not contain stomata, while hornwort sporophytes do.
Explanation:
What would the seasons on Earth be like if its axis was tilted like Uranus, perpendicular to its orbit? What would the climate at your location be like compared to how it's now?
PLZ Help!! I will give you a brainliest!
Answers
Answer:
srry i dont know i wanted points so i can ask my question but good luck
Explanation:
Which chemical contains the greatest store of free energy in one molecule? A. ATP B. glucose C starch D. chlorophyll
Answers
Answer: D. chlorophyll
Explanation:
what would the waves on the near side of the breakwater look like if the opening in the breakwater were 5 times wider
Answers
Answer:
λ = 5.65m
Explanation:
(NO BOTS OR LINKS) Which piece of evidence did Alfred Wegener's original theory of continental drift have access to?
A. seafloor spreading at mid-ocean ridges
B. reversing paleomagnetism in rocks on the ocean floor
C. a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains
D. evidence of ancient tropical swamps in cold regions of North America
Answers
Answer:
bro ik i want the same thing but on this website u dont get answers sorry bro if i cant get answers no one can XD
Explanation:
(seafloor spreading at mid-ocean ridges).
<3
Two objects are described below.
Thing 1: It pulls things down toward the ground.
Thing 2: It takes the shape of a container.
Which statement is true?
A Both objects are matter.
B Both objects are non-matter.
C The first object is matter, and the second object is non-matter.
D The first object is non-matter, and the second object is matter.
Answers
Answer:
D. The first object is not-matter, and the second object is matter.
Explanation:
The first object is gravity, this force pulls things toward the ground. The second object is something I don't know, but it is matter.
hope this helps.
The first object is matter, and the second object is non-matter.
The description provided for each object helps us determine whether they are matter or non-matter.
Thing 1: "It pulls things down toward the ground."
This description implies that Thing 1 has gravitational force, which is a characteristic of matter. Matter is anything that has mass and occupies space. Objects with mass, like planets, people, and all physical substances, exhibit gravitational force. Therefore, Thing 1 is a form of matter.
Thing 2: "It takes the shape of a container."
This description indicates that Thing 2 can fill the space within a container and assume its shape. Matter is capable of taking the shape of its container, whether it's a liquid, gas, or solid. This property is a fundamental characteristic of matter. Therefore, Thing 2 is also a form of matter.
Option A, "Both objects are matter," is incorrect because both Thing 1 and Thing 2 are indeed matter, as explained above.
Option B, "Both objects are non-matter," is incorrect because the descriptions provided for both Thing 1 and Thing 2 indicate that they possess properties of matter.
Option C, "The first object is matter, and the second object is non-matter," is also incorrect, as both objects are matter based on their respective descriptions.
Option D, "The first object is non-matter, and the second object is matter," is not true based on the explanations provided for both Thing 1 and Thing 2.
In conclusion, both Thing 1 and Thing 2 described in the statements are forms of matter due to their properties and characteristics associated with matter.
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What is a solstice?
1. the day in Earth’s orbit that marks the beginning of spring or autumn
2. the day in Earth’s orbit in which the Earth is tilted 23.5°
3. the day in Earth’s orbit that marks the beginning of summer or winter
4. the day in Earth’s orbit when sunlight and darkness are of equal lengths
I need answer ASAP!!! Plz help!
Answers
Which of the statement(s) about eclipses is/are true?
A.The moon blocking out sunlight is what causes both a solar eclipse and a lunar eclipse, the difference is a solar eclipse the sun is totally blocked out, but in a lunar eclipse the sun is only partially blocked out.
B. A solar eclipse occurs only during 1st Quarter Moon and a lunar eclipse only occurs during 3rd Quarter Moon.
C.The earth blocking sunlight to the moon is a solar eclipse. The moon blocking sunlight to the earth is a lunar eclipse.
D. A solar eclipse occurs when the moon blocks out the sun casting a shadow on earth. A lunar eclipse is when the earth blocks sunlight casting a shadow on the moon.
Answers
Answer:
D.
Explanation:
A. Is wrong because the moon blocking the sun is a solar eclipse while the Earth blocking sunlight to the moon is a lunar eclipse.
B. Is wrong because solar eclipses occur during a new moon.
C. I s wrong because the inverse is true.
the sun is fully blocked out by the moon
What is an important function of mitochondria?
a.converting energy from sunlight into chemical energy in ATP
b.converting energy from sunlight into chemical energy in glucose products
c.converting chemical energy from ATP into chemical energy in glucose products
d. converting chemical energy from glucose into chemical energy in ATP
Answers
Answer:
C. Converting chemical energy from ATP into chemical energy in glucose products.
Explanation:
Mitochondria are known as the powerhouses of a cell, as they are responsible for making ATP, the cell's main energy carrying molecule.
.・。.・゜✭・have a nice day・✫・゜・。.
Photosynthesis is made up of both light-dependent and light-independent reactions. Identify the products of the light-dependent portion of photosynthesis.
A. ADP, NADP+, and glucose
B. ATP and oxygen
C. Carbon dioxide and glucose
D. Carbon dioxide, water, and ATP
Answers
Answer:
1
Explanation:
These reactions occur in the thylakoids of the chloroplasts
What molecule that is created during photosynthesis provides energy for cellular processes?
chlorophyll
ATP
oxygen
glucose
Answers
Answer:
D. glucose.
Explanation:
I don't have any info on it so, hope this helps.