What is a phase diagram? ​

Answers

Answer 1
phase diagram, graph showing the limiting conditions for solid, liquid, and gaseous phases of a single substance or of a mixture of substances while undergoing changes in pressure and temperature or in some other combination of variables, such as solubility and temperature.

Related Questions

Why do historians analyze historical events and cause and effect relationship

Answers

Recognizing patterns of cause and effect is an important analytical skill that allows historians to explain why things happened the way they did in the past. It's also a strategy that can make it possible to predict what may happen in the future.

What is the density of a piece of cement has a mass of 8.76 g and volume of 3.07 cm^3?

Answers

Answer:

2.85g/cm^3

Explanation:

density = mass/volume

density=8.76g/3.07cm^3= 2.85g/cm^3

Answer:

The answer is 2.85 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{8.76}{3.07} \\ = 2.85342019...[/tex]

We have the final answer as

2.85 g/cm³

Hope this helps you

A ball of mass 0.2 kg is dropped from a height of 10 m. How much mechanical energy does it have right before it hits the ground? (Assume there is no air resistance.) Acceleration due to gravity is g = 9.8 m/s2.
Group of answer choices

0 J

10.0 J

19.6 J

25.4 J

Answers

Answer:

19.6 J

Explanation:

According to the formula:

M.E.= mgh

what is the formula for lead (ll) sulfate

Answers

Answer: PbSO4

Explanation: Search on google

Answer:

PbSO4

Explanation:

What is meant by H, and 2H?​

Answers

Explanation:

H is 1 mole of hydrogen

2H is 2 moles of hydrogen

Am I really stupid for not knowing this ;-;

Answers

Answer:

A. Gases;nonreactive

Explanation:

No ur not stupid, lol hope this helps!

Answer:

other dude is right also you aren't  another thing sorry I be late

Explanation:

what have you observed when you fill in a basin with water? how do you do it?​

Answers

Answer:

Cautiously and avoiding filling in the central area so that it does not overflow when filling, since being very beach makes filling difficult.

Explanation:

The basins are shallow, that is why filling is difficult, the filling must be slow, low intensity and at the edges not placing the water filling in the center of the basin.

When you fill a basin with liquid water, you can see that the water takes the shape of the container in which it is contained. This is because in the liquid state, water has molecules farther apart than in the solid state.

You can notice this property when performing an experiment with liquid and solid water.

When filling a glass, liquid water takes on the shape of a glass, and solid water, such as an ice cube, remains the same shape when placed in a glass.

Therefore, when filling a basin with water we perceive a property of the physical state of water, in liquid form. Water is one of the few substances that can be found naturally in liquid, solid and gaseous states.

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Which of these is an example of an ecosystem service?
A. A mangrove forest protects a coastal village from erosion.

B. A farmer uses non-chemical means to control pests and weeds.

C. A city enacts a law to protect a local lake from runoff pollution.

D. After closing a mine, a company adds soil and plants native grasses in the area.
someone help me asap.

Answers

Answer:

A

Explanation:

All of the other options involve cities, farmers, or companies. Those aren't natural occurrences, so A is the answer. The mangroves protect the village without anything being modified about that environment.

Carbon burns with oxygen to produce carbon dioxide gas. Which of these shows the correct chemical reaction? C + O2 → CO2 C, O, CO2 C + O = CO2 CO2 = C + O

Answers

Answer:

c+o2=co2

Explanation:

balanced reaction it is correct

Answer:

C + O2 → CO2

Explanation:

i took the test and got it right

Determine the subunit composition of a protein from the following information:Molecular mass by gel filtration: 200 kDMolecular mass by SDS-PAGE: 100 kDMolecular mass by SDS-PAGE with 2-mercaptoethanol: 40 kD and 60 kD

Answers

Answer:

Explanation:

The protein comprises of two 60-kD polypeptides and two 40-kD polypeptides. Each one of the 40-kD chains has a disulfide-bond, which is directly bonded to a 60-kD chain.

The 100-kD units attach noncovalently to produce a protein with a molecular mass of 200 kD.

The protein consists of 200 kD in size, and the Gel filtration doesn't affect the relationship and interaction among the various subunits in the protein.

When SDS-PAGE takes place, samples are being subjected to boiling of samples and therefore undergoing denaturation conditions. The result causes disorganization in the 100 kD units.

It implies that BME is responsible for the reduction between the R1-S-S-R2 bond between 40 kD and 60 kD to R1-SH and R2-SH, resulting in separate proteins.

However, the reducing agent (BME) main task is reducing disulfide bonds in a protein.

Can you count how many atoms there are in the following compounds?

Answers

you are given the mass of an element, you use the periodic table to find its molar mass, and multiply the given mass by the reciprocal of the molar mass. This is Mass → Moles . Once you have moles, multiply by Avogadro's number to calculate the number of atoms. This is Moles → Atoms

Describe the flow of energy through an ecosystem from the Sun to the plant and ultimately through an animal.

Answers

Answer:

Hope this Helps! :)

Explanation:

The word ecosystem refers to the all of the living species as well as non-living elements in a particular environmental area. For instance, a lake, swamp, coral reef, forest, or a prairie would each be considered an ecosystem. Ecosystems can vary greatly in size and individual characteristics -- for instance, the ecosystem of a puddle differs greatly from that of a swath of tundra.  

Despite these disparities, all ecosystems function similarly in the way in which energy flows into, through, and out of them through the energy cycle

Energy is transferred into and out of ecosystems via a web of complex interactions. Energy enters an ecosystem from external sources and moves throughout its components. For instance, energy from the sun flows through plants, microorganisms, and animals. Energy cycles in an ecosystem end with decomposition, and then the process begins anew    

Essentially, the flow of energy through ecosystems can be explained by who eats what. Keep in mind, however, that energy transfer isn’t perfectly efficient; much of it dissipates as heat at various phases in the cycle.

The energy flows from the sun to the plants by photosynthesis and animal eats plants and energy is transferred from plants to animals.

What is the transfer of energy?

The energy transfer isn't entirely efficient because a significant amount of it evaporates as heat at different points throughout the cycle.

Despite these differences of energy, all ecosystems function similarly in terms of the energy cycle, which governs how energy enters, passes through, and exits them.

Ecosystems receive and expend energy through a network of intricate interconnections. An ecosystem receives energy from outside sources, which circulates among its parts.

Thus, as a result of photosynthesis, energy is transmitted from the sun to plants, which are then consumed by animals.

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“surely you have gotten into a car on a cool day and noticed that the metal buckle on your seatbelt feels significantly colder than other things in your car, such as the steering wheel or the center console. Explain why this is” someone please help

Answers

Answer:

The metal buckle conducts heat away from the hand than both the steering wheel and center console.

Explanation:

Good conductors are materials that allow both heat and electricity to flow easily through them. Examples of good conductors are metals.

Poor conductors or insulators are materials which do not allow both heat and electricity to flow easily through them. Examples of insulators are most non-metals, plastics, rubber, wool, wood, etc.

On a cool day a metallic object like the buckle of a car's seatbelt will easily conduct heat away from the hand than other materials inside the car like the seat, the seatbelt, the steering wheel and the centre console as these materials are made from insulators or poor conductors.

Therefore, the metal buckle will feel colder to touch than other things in the car because it conducts heat away from the hand than both the steering wheel and center console.

I need help with the question they are asking

Answers

Answer:

i wish i could help but people are around me

Explanation:

What is the mass in grams of 381 mL of ethylene glycol?

Answers

Answer:

38

Explanation:

How would you convert 500cc of 2M H2SO4 into g/l?​

Answers

Answer:

Number of replacable H

+

ions in H

2

SO

4

=n=2

Normality =n× Molarity=2×2=4 N

6) Which of these elements is a metal?
E) C
D) N
A) O
C) Ne
B) Ca

Answers

Answer:

Ca

Explanation:

It is on the left side of the periodic table where metals are located.

Answer:

Ca

Explanation:

Which of the following chemical equations depicts a balanced ionic equation?

Answers

Answer:

Option C. 2OH¯ + Ca²⁺ —> Ca(OH)2

Explanation:

OH¯ + Ca²⁺ —> Ca(OH)2

The above equation can be balance as follow:

OH¯ + Ca²⁺ —> Ca(OH)2

There are 2 atoms of OH on the right side and 1 atom on the left side. It can be balance by putting 2 in front of OH¯ as shown below:

2OH¯ + Ca²⁺ —> Ca(OH)2

Next, we shall balanced the charge on both side. This can be obtained as follow:

Total charge on the left side = –2 + 2

Total charge on the left side = 0

Total charge on the right side = 0

Thus, the charge on both side are equal. Hence, the balance ionic equation is:

2OH¯ + Ca²⁺ —> Ca(OH)2

Observations made during an experiment are called:
A. Data
B. Problems
C. Conclusions
D Questions
I think A

Answers

Answer:

Data

Explanation:

You are right

The answer is A. Data

What are the uses for carbon?

Answers

It’s used as fuel:) please say Thank you

50 points will give brainlyest Since thermal energy represents the total energy of the particles in an object, at the same temperature, the larger object will possess more thermal energy.

Question 3 options:
True
False

Answers

Answer:

the answer to your question is: true

Thermal energy has been the total amount of energy that has been present in the object. The thermal energy has been directly proportional to the size of the object. Thus, the statement is true, and option a is correct

What is thermal energy?

Thermal energy is defined as the energy possessed by the particles of the molecules and atoms that follows the kinetic molecule theory and moves faster and collides with each other when the temperature of the system has been increased.

This type of energy has been known to be passed by the object having to be in the vicinity of the temperature. Thermal energy can flow from one substance to another due to differences in temperature.

Thermal energy has been possessed by fossil fuels like coals, and natural gases, along with electric heat,m solar heat, and geothermal heat. The thermal energy has been directly proportional to the surface area and bigger objects having more surface will be able to hold more energy.

Therefore, the statement about thermal energy and surface area is true.

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A reaction of chlorine gas with sodium solid creates 45.6 grams of sodium chloride. The mass of sodium and chlorine gas price for the reaction was ___ grams​

Answers

Answer:

17.94 annd 27.69 respectively.

Explanation:

Na(s) + Cl(g) n` NaCl(s)

mass of NaCl = 45.6 g

Mr of NaCl = 23 + 35.5

= 58.5g/mol

mole of NaCl = mass/Mr

= 45.6/58.5

= 0.78 moles

From the equation;

1 mole of NaCl = 1 mole of Na = 1 mole of Cl

hence 0.78 mol of NaCl = 0.78 mol of Na = 0.78 mol of Cl.

mass of Na = 0.78 × 23

= 17.94 grams

mass of Cl = 0.78 × 35.5

= 27.69 grams

The mass of the sodium and chlorine gas taken for the reaction was  17.92 grams and 27.73 grams​ respectively.

What is sodium chloride?

Sodium chloride is an ionic compound in which the sodium (Na⁺) and chloride (Cl⁻) ions are present in a ratio of 1 : 1. It is commonly known as table salt or halite.

Sodium and chlorine react with each other to generate a substance that is familiar to everybody around the globe which is sodium chloride.

2Na (s)   +   Cl₂ (g)   [tex]\longrightarrow[/tex]    2NaCl (s)

The atomic mass of the sodium (Na) = 23 g/mol

The atomic mass of chlorine,(Cl) = 35.5 g/mol

The molar mass of the sodium chloride (NaCl) = 58.5 g/mol

Given, the mass of the NaCl formed = 45.6 g

If 117 g NaCl formed from sodium = 2× 23 g

Then 45.6 NaCl will be formed from Na = 17.92 g

If 117 g NaCl formed from chlorine = 2× 35.5 g

45.6 NaCl will be formed from chlorine = 2× 35.5 ×45.7/117 = 27.73 g

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By what means (or force) can the atoms in compounds be separated?

Answers

Answer:

chemical means

Explanation:

Compounds can be separated by chemical means physical means boiling pressure

A star produces energy by:
A. expanding and contracting its magnetic field.
B. creating sunspots and releasing coronal ejections.
C. combining two atoms to form a larger atom, releasing energy.
D. splitting atoms apart, releasing energy in the form of photons.

Answers

Answer : C

Explanation:

a star produces energy by combining two atoms into one creates a powerful burst of energy

HURRY
Show step-by-step

2A + 5B --> 3C + D

2.0 mol A and 4.0 mol B react to form 1.8 mol C. What is the PERCENT YIELD of this reaction?

Answers

Answer:

Percent yield of reaction is 75%.

Explanation:

Given data:

Moles of A = 2.0 mol

Moles of B = 4.0 mol

Moles of C formed = 1.8 mol

Percent yield of reaction = ?

Solution:

Chemical equation:

2A + 5B     →      3C +  D

We will compare the moles of A and B with C from balance chemical equation.

                A         :          C

                2         :           3

               B          :         C

                 5         :         3

                 4         :        3/5×4 = 2.4 mol

Number of moles of C formed by 4 moles B are less thus B is limiting reactant and will limit the yield of C.

Percent yield:

Percent yield =  actual yield /theoretical yield × 100

Percent yield = 1.8 mol / 2.4  × 100

Percent yield =75%

Evidence in the fossil record points to major asteroid impacts that have caused mass extinctions in which 50%–96% of life on Earth died out.

Answers

Answer:

5

Explanation:

What is the final temperature of a 5.0g sample of water at 25C If 832 joules of heat are added?

Answers

Answer:

64.71C

Explanation:

Given

Mass (m) = 5g

Initial Temperature (T1) = 25C

Heat (Q) = 832 joules

Required

Determine the final temperature

This question will be solved using:

Q = mc∆T

Where c = specific heat = 4.19

Substitute values in the above formula, we have:

832 = 5 * 4.19 * (T2 - 25)

832 = 20.95 * (T2 - 25)

Divide both sides by 20.95

39.71 = T2 - 25

Add 25 to both sides

39.71 + 25 = T2

T2 = 64.71C

Identify the shape of the molecules that could result from each of the hybrid orbitals given below.
Check all of the boxes that apply.

sp^2-orbitals
O bent
O tetrahedral
O trigonal planar

Answers

Explanation:

The 5s,5p and 5d orbitals hybridise to form seven sp3 d3 hybrid orbitals. The molecule is then formed with 7 fluorine atoms. The geometry of this molecule is pentagonal bipyramidal . Five F atoms are in one plane directed at corners of a pentagon (equatorial position), with 72º angle between them.

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Answer:

bent and trigonal planar

Explanation:

The molecular formula of butane is C4H10C4H10. It is obtained from petroleum and is used commonly in LPG (Liquefied Petroleum Gas) cylinders (a common source of cooking gas). It has two arrangements of carbon atoms: a straight chain and a branched chain.

Required:
a. Using this information, draw the structure of the tertiary butyl radical that will form upon removal of a hydrogen atom.
b. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars.

Answers

Answer:

Explanation:

Butane is an alkane with the molecular formula C₄H₁₀.

(a) It has two structural isomers (n-butane and 2-methylpropane) shown below

     H   H   H   H

      |     |     |     |

H - C - C - C - C - H

      |     |     |     |

     H   H   H   H

The structure above is n-butane

     H     CH₃ H

      |       |       |

H - C  -  C  -  C - H

     |       |       |

    H     H     H

The structure above is 2-methylpropane and can also be referred to be a tertiary butane because the central carbon atom has 3 methyl groups attached to it as shown below.

        CH₃

         |

H₃C - C - CH₃

         |

        H

Hence, the structure of a tertiary butyl radical after loss/removal of a hydrogen atom will be

         CH₃

          |

H₃C - C⁻ - CH₃

NOTE: It should be noted that the central carbon becomes negatively charged after the loss of the hydrogen atom

(b) This is the practical part of the structure drawn above. The last structure illustrated above can be drawn on the canvas with the instruction provided in the question.

Which of these solutions would be considered to have a neutral pH?

Ammonia, pH = 9.0
Pure water, pH = 7.0
Coffee, pH = 5.0
Rainwater, pH = 6.0

Answers

Answer:

Pure Water.

Explanation:

Solutions with a pH of 1-6 are considered acidic. Solutions with a pH of 8-14 are considered basic. Solutions with a pH of 7 are considered neutral.

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A smoothie shop charges $4.80 for a small size 12-ounce smoothie and $6.40 for a large size 16-ounce smoothie. Find which smoothie is the better buy (lower cost per ounce) by finding each unit price. A. $4.80 for the 12-ounce smoothie is the better buy.B. $6.40 for the 16-ounce smoothie is the better buy.C. Both items are the same per ounce. HeLp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Consider the following situations for Shocker: a. On November 28, 2021, Shocker receives a $4,200 payment from a customer for services to be rendered evenly over the next three months. Deferred Revenue is credited. b. On December 1, 2021, the company pays a local radio station $2,640 for 30 radio ads that were to be aired, 10 per month, throughout December, January, and February. Prepaid Advertising is debited. c. Employee salaries for the month of December totaling $7,800 will be paid on January 7, 2022. d. On August 31, 2021, Shocker borrows $68,000 from a local bank. A note is signed with principal and 6% interest to be paid on August 31, 2022.Required:Record the necessary adjusting entries for Shocker at December 31, 2018. No adjusting entries were made during the year. What is the mean absolute deviation of the data shown below? Why was the construction of the Panama Canal important to the UnitedStates? Frank drives 60 miles per hour, and this relationship is graphed, which ordered pair would not be on the graph?(4, 280)(0, 0)(2, 120)(6, 360) What was the effect of the 1990 mutual nonaggression pact?the start of a new cold warthe end of the Cold Warthe beginning of peace negotiationsthe answer is b How does religion unite people and how does it divide? The chart will help, ignore the numbers on it. This is about percentages I need your help, please. Thank You The following transactions occurred during December 31, 2021, for the Falwell Company.A three-year fire insurance policy was purchased on July 1, 2021, for $9,000. The company debited insurance expense for the entire amount. Depreciation on equipment totaled $10,000 for the year. Employee salaries of $12,000 for the month of December will be paid in early January 2022. On November 1, 2021, the company borrowed $100,000 from a bank. The note requires principal and interest at 12% to be paid on April 30, 2022. On December 1, 2021, the company received $3,300 in cash from another company that is renting office space in Falwells building. The payment, representing rent for December, January, and February was credited to deferred rent revenue. On December 1, 2021, the company received $3,300 in cash from another company that is renting office space in Falwells building. The payment, representing rent for December, January, and February was credited to rent revenue rather than deferred rent revenue for $3,300 on December 1, 2021.Required:Prepare the necessary adjusting entries for each of the above situations. Please help!!!!!!!!!!! in a for loop, is it possible to use indexing? 1. A parallelogram can be inscribed inside of a circle. a) Alwaysb) Sometimesc) Never2. Circles can be inscribed inside of quadrilaterals.a) Alwaysb) Sometimesc) Never Please help me vote you brainiest How do you simplify this expression? "In the presence of a growing national civil rights movement, President Lyndon Johnson issued a call for strong voting rights laws in 1965. The Voting Rights Act, signed into law in August 1965, suspended literacy tests and provided for the appointment of federal examiners with the power to register qualified citizens to vote. On being signed into law, the act had an almost immediate impact. In South Carolina the number of American Americans registered to vote rose dramatically. In 1964, 38.7 percent of voting-age African Americans were registered. Four years later that number climbed to 50.8 percent. There were also gains in African American political participation. Less than a decade after the passage of the act, the number of African American legislators had risen to thirteen." - from "The South Carolina Encyclopedia" Which of these BEST explains the actual impact of literacy tests in the South? A) They limited the number of uneducated voters. B) They limited the number of Democratic voters. C) They limited the number of Republican voters. D) They limited the number of African American voters. Write sin 64 in terms of cosine. trent drank 3/5 of a gallon of water. nicholas drank 2/3 of a gallon. who drank more water? HELP!! InstructionsDrag and drop each statement of the sample below to match the correct components of an introductory paragraph: Claim, Hook, ThesisStatement, Relevant Evidence, and Transition Sentence. Be sure to use the checklist as you work. The side length of an equilateral triangle is 5 centimeters. Find the length of an altitude. Round your answer to the nearest tenth.The length of the altitude is about centimeters.