a 35.66g sample of copper is heated using 600j of energy. if the original temperature of the copper is 85C what is its final temperature?

Specific heat of copper: 0.38j/gC

A -6.39
B 6.39
C -78.61
D 91.4

Answers

Answer 1

This problem is providing the mass, energy, initial temperature and specific heat of a sample of copper that is required to calculate the final temperature.

Thus, we recall the general heat equation:

[tex]Q=mC(T_f-T_i)\\[/tex]

Which has to be solved for the final temperature, [tex]T_f[/tex] as follows:

[tex]T_f=T_i+\frac{Q}{mC}[/tex]

Finally, we plug in the numbers to obtain:

[tex]T_f=85\°C+\frac{600J}{35.66g*0.38\frac{J}{g\°C} } \\\\T_f=129.3\°C[/tex]

However, this result is not given in the choices.

Learn more:

https://brainly.com/question/14383794

Related Questions

275 KJ of energy was transferred to water at 15c. Calculate the mass of water that can be brought to its boiling point

Answers

Answer:

need points rn sorry bro hope u get ur answer

Explanation:

In the reaction below the total mass of calcium in the reactants is 40. What is the total mass of calcium in the products?

Answers

Answer:

40

Explanation:

The total mass of calcium in the products is 40

What is the total mass number?

The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom. Consider the table below, which shows data from the first six elements of the periodic table. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus.

How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Learn more about mass of calcium at

https://brainly.in/question/12273172

#SPJ2

How are mitosis and meiosis similar? How are they different? Provide 1 way the two processes are the same and 2 ways the 2 processes are different.

Answers

Answer:

Similar: both processes of cell division; both processes take place in the nucleus of the cell

Different: mitosis divides into 2, meiosis divides into 4; one is the division of body cells and the other is of specifically sex cells

Explanation:

https://byjus.com/biology/mitosis-and-meiosis/

^ this has more info!

why are baseballs harder to pick up tennis balls?

Answers

Explanation:

Because baseballs are made out of things that make it heavier then tennis balls, easier to play the sport. that's why they use a bat in baseball.

Which electromagnetic wave type has frequencies higher than the violet of visible light?

Answers

Answer:

Ultraviolet means “above violet.” The electromagnetic frequencies of ultraviolet radiation (UV) extend upward from violet, the highest-frequency visible light.

hope this helps

How do mixtures differ from substances?

Answers

Answer:

In chemistry: a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.

Hope this helps :)

Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on ________. the car driven governmental incentives for research the amount of fossil fuels that are invested in long-term storage the source of oxygen used for the process the source of energy used to produce the hydrogen

Answers

A hydrogen energy system is made up of hydrogen production, transportation, storage, utilization etc. Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on the source of energy used to produce the hydrogen.

Hydrogen fuel cells often makes electricity by using  hydrogen and oxygen atoms. The hydrogen is said to reacts with oxygen across an electrochemical cell.

Hydrogen is known to carry some amount of energy carrier and can also deliver or store a large amount of energy. Hydrogen is often used in fuel cells to generate electricity, or power and heat.

Learn more from

https://brainly.com/question/3818781

Imagine a basketball filled with liquid water.Would the basketball still hold the same number of molecules? Can you use
22.4 L/mol as the molar volume for liquid water

Answers

Answer:

Yes !

Explanation:

The ball will have more molecules.

a basketball filled with liquid water. yes we use 22.4 L/mol as the molar volume for liquid water.

what are the properties of water ?

Water is the chemical substance having chemical formula H2O, one molecule of water consist of two hydrogen atoms which are covalently bonded to a single oxygen atom.

The physical property of Water are, it  is a colorless and tasteless liquid,  have extensive hydrogen bonds resulting in unusual properties in the condensed form.

This also have high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment, etc.

Water is a great solvent and  helps in the transportation of ions and molecules required for metabolism, has high latent heat of vaporization helps in the regulation of body temperature.

It is Amphoteric nature can act as  both acid and base  means that it is amphoteric in nature, it is Electropositive elements which reduce water to hydrogen molecule and it is the source of hydrogen.

For more details regarding water, visit

brainly.com/question/2602094

#SPJ6

Help help with the question below

Answers

I would say A but I am not sure

for each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water.

Answers

Hydrogen bonding occurs between water and molecules that are polar in nature.

Even though the question is incomplete, I will try to help you to the best of my ability. Hydrogen bonding is formed when hydrogen is bonded to a highly electronegative atom.

Hydrogen bonding could occur between the molecules of a compound or between the molecules of a substance and water. Hydrogen bonding occurs between the molecules of a substances such as NH3, H2O and HF.

On the other hand, hydrogen bonding occurs between water and the compound in compounds such as CH2F2, amines, etc.

Learn more: https://brainly.com/question/4542860

una pieza de hierro de 25cm3 tiene una masa de 195g cual es su densidad?

Answers

Answer:

Pretend you are a TV producer. Think of ideas for new TV shows. Your objective is to create ideas that will be successful, regardless of whether this is quality programming or not. Think of an idea of a copy. Explain the basics of what this show will be like and what show it is copying. Explain why you feel this show will be popular. Think of an idea of a spin-off. Explain the basics of what this show will be like and what show it is spinning off from. Explain why you feel this show will be popular. Think of an idea for a TV show that falls into one of the genre categories listed in the genre chart. Describe the basics of the show and how it falls under the genre’s expectations for characters, plots, and aesthetics. Explain why you feel this show will be popular.

what is the maximum concentration of salt in water for an ecosystem to be classified as a freshwater system?

Answers

Answer:

The saline water should be from 1000 ppm to 3000 ppm while fresh water is less than 1000 ppm

what is air pressure? In your own words

Answers

Answer:

The amount of force applied on an object that is moving in motion

Explanation:

How to find the partial pressure of a gas.

Answers

Answer:

The total pressure of a mixture of gases can be defined as the sum of the pressures of each individual gas: Ptotal=P1+P2+… +Pn. + P n . The partial pressure of an individual gas is equal to the total pressure multiplied by the mole fraction of that gas.

Using diving terms, partial pressure is calculated as: partial pressure = (total absolute pressure) × (volume fraction of gas component) For the component gas "i": pi = P × F.

What is the mass of 1 mol of 0 atoms to three significant figures?

Answers

Answer:

16.0 gms

Explanation:

what is the mass of 1 mole of O atoms to 3 significant figures

    go to your periodic table.......O is element  8 and has an atomic mass of 15.999.  to 3 significant figures, this rounds to 16.0

1 mole is the molar mass in grams

so 1 mole of O atoms has a weight of 16.0 gms

Analysis of a 1.7500-g sample of
Pepto-Bismol yields 346 mg of bismuth. What percent by
mass is bismuth subsalicylate in the sample? (Assume that
there are no other bismuth-containing compounds in
Pepto-Bismol.)

Answers

Answer:

19.8 %

Explanation:

Analysis of a 1.7500-g sample of

Pepto-Bismol yields 346 mg of bismuth. What percent by

mass is bismuth subsalicylate in the sample? (Assume that

there are no other bismuth-containing compounds in

Pepto-Bismol.)

346 mg = 0.346 gm

0.346 gm/1.75 gm =0.198 = 19.8 %

4. If the speed of an object increases, its kinetic energy
stays the same
decreases
increases

Answers

Answer:

I think the answer is increases

Describe how calcium and fluorine bond together to form calcium fluoride

Answers

Answer:   A transfer of electrons occurs when fluorine and calcium react to form an ionic compound. This is because calcium is in group two and so forms ions with a two positive charge. ... A pairs of shared electrons makes one covalent bond. The compound formed is known as a molecule***

What is the theoretical yield of sodium chloride when 8.3 g of sodium is reacted with 4.5 g of chlorine? 2Na(s) + Cl2(g) → 2NaCl(s)

Answers

The theoretical yield of sodium chloride when 8.3 g of sodium react with 4.5 g of chlorine is 3.30 g

We'll begin calculating the masses of Na and Cl that reacted and the mass of NaCl produced from the balanced equation.

2Na + Cl₂ —> 2NaCl

Molar mass of Na = 23 g/mol

Mass of Na from the balanced equation = 2 × 23 = 46 g

Molar mass of Cl₂ = 2 × 35.5 = 71 g/mol

Mass of Cl₂ from the balanced equation = 1 × 71 = 71 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl from the balanced equation = 2 × 58.5 = 117 g

SUMMARY

From the balanced equation above,

46 g of Na reacted with 71 g of Cl₂ to produce 117 g of NaCl

Next, we shall determine the limiting reactant.

From the balanced equation above,

46 g of Na reacted with 71 g of Cl₂

Therefore,

8.3 g of Na will react with = (8.3 × 71)/46 = 12.81 g of Cl₂

From the calculation made above, we can see that a higher amount (i.e 12.81 g) of Cl₂ than what was given (i.e 4.5 g) is needed to react completely with 8.3 g of Na.

Therefore, Cl₂ is the limiting reactant and Na is the excess reactant

Finally, we shall determine the theoretical yield of NaCl by using the limiting reactant (i.e Cl₂)

From the balanced equation above,

71 g of Cl₂ reacted to produce 117 g of NaCl.

Therefore,

4.5 g of Cl₂ will react to produce = (4.5 × 117)/71 = 3.30 g of NaCl

Thus, the theoretical yield of NaCl produced is 3.30 g

Learn more: https://brainly.com/question/25669079

Answer:

The correct answer is 7.4 g NaCl

Explanation:

what is the scientific name for the layers of gas that surrounds the earth ?

a . biosphere

b . atmosphere

c . lithosphere

d . hydrosphere


PLEASEE ANSWER ILL GIVE U BRAINLYEST ASPAAAAPP

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

b. Atmosphere

An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

Hope it helps!

Brainliest pls!

Follow me! :)

Energy moves back and forth through the differnent ________.

Answers

Vibrations I think, if this is waves

Please help me, I'm stuck and I don't know how to do it.

How many atoms are there in 7.02 g Si ?

Answers

Answer:

1.51e23 atoms

Explanation:

First, using the molar mass of Si (28.1 g/mol), determine the # of moles of Si we have. Then use Avogadro's number (6.022e23 atoms = 1 mol) to convert the # of moles to the # of Si atoms.

(7.02 g Si)([tex]\frac{1 mol}{28.1 g}[/tex]) = 0.250 mol Si              

(0.250 mol Si)([tex]\frac{6.022*10^{23} atoms }{1 mol}[/tex]) = 1.51e23 atoms    

The atomic mass of Silicon (Si) is 28.09 g/mol. The no. of atoms present in 7.02 g of Si is 1.46 × 10²³.

What is a mole?

Any substance containing  6.022 × 10²³ atoms is called one mole of that substance.  The no.of moles can be calculated by dividing the given weight by the atomic mass of the substance.

Atomic mass of Si = 28.09 g/mol

      Given mass    = 7.02 g.

       No.of moles  = 7.02 g/ 28.09 g/mol

                             = 0.24 moles

One mole contains  6.02 × 10²³ atoms. Thus 0.24 mole of Si contains  6.02 × 10²³ × 0.24  = 1.46 × 10²³ atoms.

Hence, no.of atoms present in 7.02 g of Si is 1.46 × 10²³ .

To learn more about no. of moles, refer the link below:

https://brainly.com/question/26416088

#SPJ2

What is an empirical formula

Answers

Answer:

a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

Explanation:

Answer:

Meaning of Empirical formula :-

A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

Defination of Empirical formula :-

The empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound. A simple example of this concept is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S₂O₂.

Explanation:

Hope this helps you XD ✌️Carry on learning !!

An atom has 5 protons, 4 electrons, and 5 neutrons. Which
of the following reasons represents why this is an atom of
the element boron?

A ) The atom has 5 neutrons, just like every atom of boron

B ) The atom has 4 electrons, just like every atom of boron

C ) The atom has 14 total particles, in a combination of 5-5-4 just like every atom of boron

D ) The atom has 5 protons, just like every atom of boron

< PLEASE HELP ASAP!

Answers

Answer:

i think the answer is C

Explanation:

not sure plsss dont bash im a beginner

Answer:

B ) The atom has 4 electrons, just like every atom of boron

Explanation:

HOPE IT'S HELP

An atom of sodium has 11 electrons. Make a sketch of a sodium atom, showing how many electrons it has at each energy level. Infer how reactive sodium atoms are.


SOMEONE PLEASE HELP ME OUT. :( I DONT GET IT !!!

Answers

Answer:

Sodium has 11 electrons. The first two fill the innermost energy level. The second energy level is also full, holding eight electrons and one electron remaining in the outer energy level. It is the number of outer electrons that give an element its chemical properties.

Explanation:

Sodium has 11 electrons. Therefore electronic configuration of sodium is (2,8,1).

What are electrons?

Electrons are the negatively charged particles of an atom. An atom contains a positive proton, a negative electron, and a neutral neutron. Electrons are negatively charged particles that rotate around the atom.

There are around 118 elements in the earth. Sodium is a important element. The atomic number of sodium is 11. The first shell contains 2 electrons, 2nd shell contains 8 electrons and 3rd shell will have 1 electron in sodium.

Sodium is a metal. It will loose that one electron and become cation. It become Na+.

Therefore, Sodium has 11 electrons. Therefore electronic configuration of sodium is (2,8,1).

To learn more about sodium, refer to the link:

https://brainly.com/question/24010534

#SPJ2

how can teh human body looose heat? (conduction, convecion, radiation) and WHY

Answers

Answer:

Radiation and conduction

Explanation:

The human body lose heat by these two ways, because everything that touches our bodies and is in a temperature below us will receive part of our heat (conduction), and you can figure out that we lose heat by radiation because a human bright in a heat cam

Solutions
Which statement is true of pure substance

1. They may contain one type of atom or one type of molecules.
2.they can only contain one type of molecules.
3.they can contain different types of atoms and molecules.
4.they can only contain one type of atom

This is science btw

Answers

Answer:

4

Explanation:

cuz pure substance contain one type of atom,molecule,or cpd.

2 is true but it have wrong grammar,if it contain only one type it must be^^molecule^^

How do you find the frequency of a recorder?

Answers

Answer:

Modern recorders are most commonly pitched at A=440 Hz, but among serious amateurs and professionals, other pitch standards are often found. For the performance of baroque music, A=415 Hz is the de facto standard, while pre-Baroque music is often performed at A=440 Hz or A=466 Hz.

Explanation:

most transition metal ions contain partially occupied ________ subshells.

Answers

they contain d subshells

help asap for brainlist
Which statement BEST describes how many Aluminum atoms are needed when making Aluminum chloride?

Question 11 options:

1 Aluminum atom is needed because Aluminum donates one valence electron to Chlorine.


3 Aluminum atom is needed because Aluminum donates three valence electron to Chlorine.


3 Aluminum atom is needed because Aluminum accepts three valence electron from Chlorine.


2 Aluminum atom is needed because Aluminum accepts three valence electron from Chlorine.

Answers

Answer:

34 Aluminum Atoms needed to make Aluminum Chloride

Explanation:

Because through this bottom 34 atoms are subheading to make Aluminum Chloride through magnesium
Other Questions
I need help question istheimage attached What kind of motivation do the narrator thoughts show two kinds Sarah has written an outline for an essay one of the bullet points shows the education public about the importance of using seatbelts convince more people to use them in which part of the outline can this idea What is conflict and what are the two types of conflict? 10. A battery-operated alarmclock waking you up in themorning. What type of energy is this? You deposit $5000 into a savingsaccount. If you cam a simpleinterest rate of 3%, how muchinterest will you earn after 5 years What must a student do to obtain a volume of 12.5 milliliters of liquid in the graduated cylinder shown in the diagram below?AAdd 0.5 mL of liquid.B.Add 1.5 mL of liquid.CRemove 0.5 mL of liquid.DRemove 1.5 mL of liquid. Without freedom of the press, the government could limit what information Americans could access and punish people for speaking or writing about their political beliefs. 1)True 2)False i need help again... In order to create suspense for their readers, authors often wish to hint where the story is going. At the same time, she doesn't wish to give away the ending. This is called The table shows the results for spinning the spinner 80 times. What is the relative frequency for the event "spin a 3"? WILL GIVE BRAINLIEST (5x-7)(10x-32)14 the perimeter of the pictured triangle is _____ in. What are web protocols. Help help help help English What is the correct choice for this question I really need answer Semejanzas entre discusin y conversacin RDP connection from outside the network to a server inside the network. Which network device will a network administrator MOST likely configure to allow this connection? Hub Switch Firewall ____________means without air. Basically, your lungs cannot provide energy very fast, so anaerobic exercises use the energy stored in the muscles. Question 1 options: Anaerobic Aerobic A(n) __________ is a business-to-business (B2B) network which provides an organization access to suppliers and distributors to improve supply chain management. help me pls I'm so confused