What do you think is the difference between an "open" system & a "closed" system?

Answers

Answer 1

Answer:

Hope it help you

Stayhomestaysafe

Plz mark my answer brainliest✍️✍️

Explanation:

There are three types of systems in thermodynamics: open, closed, and isolated. An open system can exchange both energy and matter with its surroundings. ... A closed system, on the other hand, can exchange only energy with its surroundings, not matter.

REAL NAME - SHRESTH DUBEY


Related Questions

What mass of ethanol will All
a 250.0 ml container if its
density is 0.789 g/ml?

Answers

Answer:

The answer is 197.25 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 250 mL

density = 0.789 g/ml

So we have

mass = 250 × 0.789

We have the final answer as

197.25 g

Hope this helps you

how long will take an object traveling at 25 m/s to reach a distance of 125 meters? ​

Answers

Answer:

5s

Explanation:

Find the percent of oxygen in CaClO3)2 Show your work

Answers

So in calcium chlorate, there is one calcium, 2 chlorines, and 6 oxygens. To find the percent of oxygen in the compound, find the weight of the oxygen and divide it by the total weight of the compound:

weight of oxygen (95.94g/mol) / weight of entire compound (206.98g/mol)
= 0.4635

Finally, to convert this to a percentage you multiply it by 100

0.4635 x 100 = 46.35% Oxygen by mass

If all the deer disappeared from this community, which change would be most
likely to occur?

Answers

Answer:

i think the grass population would decrease

Explanation:

Answer:

The Coyote population would decrease

Explanation:

organize the following elements in order of increasing atomic radius (Ge, He, Sr, O, Ba)

Answers

Answer:

He

O

Ge

Sr

Ba

Explanation:

An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.

In general, the size of an atom will decrease as you move from left to the right of a certain period.

The kinetic energy of a moving object depends on its mass and its
a. volume.
b. velocity.
c. distance.
d. acceleration.

Answers

I think the answer is a, volume, but I still might be wrong.
It’s the volume of the object

If a gold bar is 16,000 g mass and 800 cm^3 volume what is the density?

Answers

Answer:

The answer is 20 g/cm³

Explanation:

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

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

From the question

mass = 16,000 g

volume = 800 cm³

We have

[tex]density = \frac{16000}{800} = \frac{160}{8} \\ [/tex]

We have the final answer as

20 g/cm³

Hope this helps you

If a sample of copper is 215g, how many moles of copper atoms are in the sample?

Answers

Answer:

3.38 moles.

Explanation:

The following data were obtained from the question:

Mass of copper (Cu) = 215 g

Number of mole of copper (Cu) =...?

The number of mole of copper (Cu) in 215 g can be obtained as follow:

Mass of copper (Cu) = 215 g

Molar mass of copper (Cu) = 63.55 g/mol

Number of mole of copper (Cu) =...?

Mole = mass /Molar mass

Mole of Cu = 215/63.55

Mole of Cu = 3.38 moles

Therefore, 3.38 moles of copper (Cu) is present in the sample.

1 point
Nitrogen has three occurring isotopes: Nitrogen-13, Nitrogen-14, Nitrogen-15. Which isotope is the most abundant?

Answers

Explanation:

Nitrogen-14 is the most abundant isotopes of Nitrogen.

Why were enslaved Africans in high demand in the southern colonies?

Answers

Answer:

Slaves were in high demand in the southern colonies because they were the main source of labor. ... Bacon and others colonists wanted to take the Natives land.

Explanation:

HOPE THIS HELPED ❤✨

Slaves were in high demand because they were the main source of labor meaning they would do all of their owners work and without the slaves it was hard for them to keep up with their house, farm, work etc

Egg + Heat

Proof of a Chemical Reaction

Answers

Answer:

Water+Heat

proof of physical reaction

Explanation:

Chemical reactions are reactions that can't be undone ex cooking and egg.

Physical reactions are reactions that can be undone ex boiling water.

Answer:

Egg + Heat = Chemical Change

Explanation:

This is a chemical change because it cannot be undone. Once it changed its form you could not revert it back to its original self.

I hope this helps you! :)))))

K+ Cl2 → КСІ balance equation​

Answers

Answer: 2K + Cl2 —> 2KCl

Why is Graphite soft

Answers

Answer:

Graphite is soft because it has weak inter molecular forces between its layers.

Identify the atom
H₄
CH₄
N

Answers

Answer:

Organic Molecule.

Explanation:

Any molecule with C atoms and H atoms are organic molecules in chemistry.

Examples could be C₄H₅, C₉H₁₈O₆, C₅H₁₂N.

I need help with that box

Answers

I hope this helps.

the first line would be SN, 50, 50, 69

second line would be PT, 78, 78, 117

third line would be MO, 42, 42, 54

fourth line would be NI, 28, 28, 31

fifth line would be U, 92, 92, 146

What element is the only Noble Gas in the s-block?

Answers

Answer:

Helium

Explanation:

Answer:

helium i guess i m not sure

I
ER
FLINE JE PELENE BI
OSE ELETTES
SELFS EEE
BER
LE
0

Answers

ososlwkwkwlwkemmwmwmwwmkwkwmw

Answer:

WOWKFBBAI9AIEHEBFKCOAKQQ

what is the first step of scientific method A.Hypothesis
B. question
C.control
D.procedures​

Answers

Answer:

B

Explanation:

Question. You need to ask questions before you can set up to perform an experiment.

the number of protons will tell you what elements it is. T or F plzz help​

Answers

Answer:

True

Explanation:

There are two ways to tell elements apart from each other: the atomic number or the number of protons. The atomic number tells the number of protons in the element.

For example:

There are two given elements. One has 3 protons and an atomic number of 3 while the other has 7 protons and an atomic number of 7. Which one is Lithium?

Lithium has an atomic number of 3, which means it has three protons, which means Lithium is the one with 3 protons.

explain how to balance the chemical equation, KClO3 ⟶ KCl + O2 and include all steps

Answers

The balance of chemical equation : 2KClO₃ ⟶ 2KCl + 3O₂

Further explanation  

Equalization (balance) of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

Reaction

[tex]\tt KClO_3\Rightarrow KCl+O_2[/tex]

1. Coefficient

KClO₃ ⟶ aKCl + bO₂

2. Equation

K ⇒ left =1, right=a ⇒a=1

Cl⇒ left =1, right=a ⇒a=1

O ⇒ left = 3, right = 2b ⇒3=2b, b = 1.5

The equation turns into :

KClO₃ ⟶ KCl + 1.5O₂

multiplied by 2

2KClO₃ ⟶ 2KCl + 3O₂

Which of the following is NOT a characteristic of a compound?
A. has different properties from the elements that formed it
B. pure substance made of two or more elements
C. can be represented by a chemical formula
D. different samples have different properties

Answers

Answer:

I think it's D

sorry if I'm wrong.

Explanation:

Options that are not characteristics of compound in the question is D. different samples have different properties.

A compound can be regarded as a substance which is formed by chemical  combination of two or more elements.Examples of compound are water ( H2O), Sodium chloride ( NaCl)

Some of the properties of a compound are;

A compound will always has a different properties which is different from the properties of each of the elements making up the compound.A compound are formed as a result of  two or more elements that combined chemically.A compound can be identified with its chemical formula.

Therefore, option D is correct because a compound will only has its own properties not that

Learn more at : https://brainly.com/question/13516179?referrer=searchResults

Compounds are created when atoms of different elements _____.

1.form chemical bonds
2.have different chemical properties
3.form physical bonds
4.have similar chemical properties

Answers

Answer:

1.form chemical bonds

What all indicates a CHEMICAL change? *
A Solid melting into a liquid
After the change the substance is still reactive with oxygen
One substance becomes two new substances
The melting point was 100 deg C but after the change the melting point was 256 deg
C.

Answers

one substance becomes two new substances

Which of the following is the conjugate acid of H2P04- ?
A. HAP04
O B. PO 3-
O C. HP04-2
O D. H3PO4

Answers

Answer:

phosphoric acid H3PO4

The conjugate acid of H₂PO⁴⁻ is H₃PO₄. Therefore, option D is correct.

A conjugate acid is a species that is formed when a base accepts a proton (H⁺). It is the species that is one proton (H⁺) more acidic than the original base.

The base is the species that can accept a proton (H⁺), and the conjugate acid is the species that is formed when the base accepts the proton. The conjugate acid has one additional proton compared to the base.

Conjugate acids play an important role in acid-base reactions as they are formed when bases accept protons, and they can donate protons in subsequent reactions to regenerate the original base.

Learn more about conjugate acids, here:

https://brainly.com/question/31229565

#SPJ6

3. The presence of the same
a. fossils
b. rocks
on several continents supports the hypothesis of continental drift.
c. neither a norb
d. both a and b

Answers

Answer:

with someone or in the same place as them

Explanation:

The rows in the periodic table are called periods.
What is true about elements in the same period?

Answers

Answer:

elements in the same period have the same number of shells

the period number the element is in, that is the number of shells it has.

A star's mass determines the —
A) shape of a Star
B) location of a star
C) length of its lifecycle
D) galaxy it belongs to

Answers

It’s either A or C sorry I can’t help more

Which can change from one state of matter to another at the temperatures and pressures experienced at Earth’s surface?
oxygen

carbon dioxide

water

nitrogen

Answers

The answer is for that will be Water

What happens if an organism cannot carry out its life function?

Answers

Answer:

organisms cannot stay with out getting nutrients as they will not be able to repair them selves or produce energy.

Explanation:

The maximum amount of statie friction between this chair
and the floor is 175 N.
Which action would cause the chair to move to the left?
A. Applying 100 N of force to the chair from the left
B. Applying 200 N of force to the chair from the left
O c. Applying 200 N of force to the chair from the right
O D. Applying 100 N of force to the chair from the right

Answers

In order to overcome static friction, a force greater than 175 N would need to be applied to the chair, so we can eliminate A and D. Since you want to move the chair to the left, you’d have to push from the right, so the correct answer is
C) applying 200 N of force to the chair from the right

Answer:

C

Explanation:

A p ex

Other Questions
Write an algebraic expression for the difference of 5 from b . Which federal government creation led to the use of Environmental Impact Statements? Whats 2+2 Answer : 4 hope it helps If f(x) = -x + 4 and g(x) = x^2 - 5, then g(f(-1)) = ? >Of the points shown below, which pointrepresents the number with the greatestabsolute value?A B C D+-4 -3 -2 -1 0 1 2 3 4 An angle is 36 less than its complement. What is the measure of the angle? 3. You are walking alone to your car in a dark parking lot. A manapproaches you and asks you for a ride to the bus station.a. What is the risk factor of thissituation? (1 pt)b. Describe a possible outcome tothis situation. (pt)C. Describe how you would respondto avoid danger. (2 pts) Find the midpoint of the segment with the following endpoints. (5,4) and (1,7) Why do humans still think there is a god even though science has proven them wrong every time? plz plz help i promise i will mark brainliest After restarting a customers complaint the employee should A. Investigate the problem B. Take actin C. Listen to the customer D. Thank the customer for the complaint Someone help I would appreciate it very much Sara has 3.75 bags of gravel for her driveway project. Each bag of gravel will cover 125.3 square feet How many square feet will Sara be able to cover if she uses all these bags of gravel? AT469.875 ft? B 375.225 ft? C 407.225 ft2 D 418.502 ft2 Which of these do you think would be an effective strategy for an ad?A) use a long headline with complex wordsB)convey as many messages as possibleC) convey one core messageD) exaggerate facts to impress the audience According to your reading, pastoral people had to be able to adapt to changes in _____.geographyclimaterivers The temperature was 8. It dropped so that the temperature was 0. What integer represents the change in temperature? you are testing a new blood glucose monitor. every sample that you take gets a reading of 80. which of the following terms best describes the monitors readings? Question 1: What is an implied idea in the The Bell Rock?A. The early history of Bell Rock is mostly known through poetry.B. The Bell Rock lighthouse was more important as literary inspiration than as a functioning lighthouse.C. The location of Bell Rock made construction of the lighthouse challenging and risky.D. The Bell Rock lighthouse is most famous because of the person who built it.Question 2 : Which two sentences from the text that best support the answer in Question 1? (CHOOSE TWO ANSWERS)A. "Despite the rigors of the task, only two lives were lost during construction."B. The author R. M. Ballantyne . . . stayed in the lighthouse for three weeks to gather background material for his story 'The Lighthouse,' which he set on the Bell Rock.C. "Robert Stevenson went on to design many other lighthouses around the Scottish coast, and all three of his sons who survived infancy became lighthouse engineers, as did several of his grandsons."D. "The lighthouse took almost four years to complete, primarily as work was restricted to the summer months; winter weather precluded any building on, and often travel to, the Rock." Is it a function ?? (please help) 20 POINTS AND 5 STARS