Chemistry High School

How much energy is required to melt 2 kg of copper? Use the table below and
this equation: Q = mLfusion
A. 125.6 kJ
B. 9460 kJ
C. 414 kJ
D. 4730 kJ

How Much Energy Is Required To Melt 2 Kg Of Copper? Use The Table Below Andthis Equation: Q = MLfusionA.

Answers

Answer 1

Answer:

C. 414 kJ

Explanation:

Given parameters:

Mass of copper  = 2kg

Unknown:

Amount of energy required to melt the copper  = ?

Solution:

To solve this problem, we use:

       Q  = m L

m is the mass

L is the latent heat of fusion of copper  = 207kJ/kg

So;

        Q = 2 x 207  = 414kJ

Related Questions

Can someone answer ASAP if you hurry I will mark brainliest

Answers

Answer:

Electrical and magnetic

You exert a gravitational force on the pupil and the pupil exerts an equal gravitational force on you. ... The size of the gravitational force depends on the mass of the objects involved. The greater the mass, the greater the gravitational force.

Explanation:

Why do scientist use the scientific method

Answers

Answer:

B

Explanation:

scientists always look for evidence

Answer:

Yea its B

Explanation: The person above me legit toke the answer out of my mouth

PLZ HELP!!!!!asapnow

Answers

Answer:

Friction of wind against the ocean surface

friction of wind against the ocean surface

How can calcium oxide change directly to limewater?
Wants equation and observation

Answers

Answer:

Lime(Calcium Oxide) is a white solid with strongly basic properties.Lime reacts readily with water to produce slaked lime,which is the chemical compound calcium hydroxide.....

When carbon dioxide gas is passed through or over limewater,it turns milky due to the formation of calcium carbonate.

Calculate the molar mass of NaNO3-

Answers

The molar mass is 37 grams

Write the name for the IONIC compound that contains two aluminum atoms and three sulfur atoms. (Need help ASAP)

Answers

Ionic compound
Al +3 charge, Aluminum
S -2 charge, Sulfur

Al2S3

How many grams are in 3.00 x 10^24 molecules of Zn(C2H3O2)2?​

Answers

Answer:

Mass = 917.4 g

Explanation:

Given data:

Number of molecules = 3.00 ×10²⁴ molecules

Mass in gram = ?

Solution:

1 mole contain 6.022 × 10²³ molecules

3.00 ×10²⁴ molecules × 1 mol /  6.022 × 10²³ molecules

0.5×10¹ mol

5 mol

Mass in gram:

Mass = number of moles  × molar mass

Mass = 5 mol  × 183.48 g/mol

Mass = 917.4 g

Other Questions
A mirror is 24 inches high and 28 inches wide. The center of the mirror will hang 514 feet from the floor on a wall that is 8 feet high.What will be the distance from the top of the mirror to the ceiling once the mirror is hung on the wall?A [tex]1\frac{3}{4}[/tex] feetB [tex]2\frac{3}{4}[/tex] feetC [tex]5\frac{1}{4}[/tex] feetD 8 feet A 1,600-milliliter bucket of paint is at a temperature of 70F. Then the paint is divided equally into four smaller buckets. Each bucket is at 70F before the paint is poured.the temperature of each 400 milliliter bucket is about _____ the temperature of the original bucket of paint.a.the same asb.four timesc.one fourthscience Serena Williams' catsuit controversy evokes thebattle over women wearing shorts what is a term that means to blend into or be absorbed into American society. 1. Assimilate2. Manifest Destiny3. Reservation4. Monopoly On average, 15% of the patients a certain emergency room receives are uninsured. Let N be the number of patients the emergency room receives until it receives the first uninsured patient of the day. Assume the insurance status of the patients is independent. Find the probability that it takes at least 6 patients until the emergency room receives the first uninsured patient. You may round your answer to the nearest hundredth. Some tips how to be a good citzen Give the symbol for the element with the following orbital diagram:1s0000 2s0000 2p0000 3s0000 3p0000 4s0000 3d PLS HELP how does gene knockout work? A study that moves from general to specific is: Help!!! What is the difference ? (x - 8)/(3x) - (3x)/(x ^ 2) 8A school board voted whether to adopt new math books. Those that voted yesout numbered those that voted no by a ratio of 5 to 1. If 18 school boardmembers voted, how many voted yes for new math books and how manyvoted no? A dig-your-own potato farm charges $1.27 per pound of potatoes plus $0.20 per pound to clean the potatoes. Kevin digs 30 pounds of potatoes. The farm cleans 8 pounds for him. How much does Kevin pay in all? define immunology?please answer this question Editing and revising are part of the writing process. In 3-4 sentences, describe the difference between the two. tell me how to answer this please I WILL MARK BRAINLIEST If it costs $1.40 per square foot to install the garden, what is the cost for plan A? Plan B? A parallel circuit contains four identical lamps. The current through the energy source is 4 A. The total resistance of the circuit is 10 . What is the voltage across the energy source and across each lamp I need help with #15 please and thanks. Tammy's allowance is $5.00. She did extra chores around the house and earned anextra $1.75. She goes to the store with her older sister and buys an ice cream for$2.25. On her way home she finds $1.00. How much money does Tammy have? Does anyone know the answer to this?