answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Snowcat [4.5K]
1 year ago
12

Copper(l) sulfide can react with oxygen to produce copper metal by the reactionCu2S + O2 => 2Cu + SO2.If 5.00 g of Cu2S is us

ed, then what is the theoretical yield of Cu?a. 10.0 gb. 1.99 gc. 1.00 gd. 5.00 ge. 3.99 g
Chemistry
1 answer:
Vlad1618 [11]1 year ago
6 0

Answer:

The answer to your question is e. 3.99 g

Explanation:

Data

Cu₂S = 5g

theoretical yield = ?

Chemical reaction

                             Cu₂S + O₂ ⇒ 2Cu + SO₂

Process

1.- Calculate the molecular mass of Cu₂S and Cu

Cu₂S = (2 x 64) + 32 = 160 g

Cu = 2 x 64 = 128 g

2.- Calculate the theoretical production of Cu

                            160 g of Cu₂S  --------------- 128 g of Cu

                                5 g of Cu₂S  --------------   x

                                x = (5 x 128) / 160

                                x = 640 / 160

                               x = 4 g of Cu

You might be interested in
(S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
blsea [12.9K]
<span>(CH3)2-CH2-C(F)(OH)-CH2-CBr2-CH3</span>
6 0
2 years ago
Read 2 more answers
In what situation do we use a volumetric flask, conical flask, pipette and graduated cylinder? Explain your answer from accuracy
Ad libitum [116K]
A volumetric flask is used to contain a predetermined volume of substance and only measures that volume, for example 250 ml.
Conical flasks can be used to measure the volume of substances but the accuracy they provide is usually up to 10ml. Conical flasks are used in titrations, reactions where the liquid may boil, and reactions which involve stirring. 
Pippettes are of two types, volumetric and graduated. Pippettes are used where high accuracy is required and volumetric pippettes come in as little as 1 ml. Pippettes are usually used in titrations.
Graduated cylinders come in a wide variety of sizes and their accuracy can be down to as much as 1 ml. They are used to contain liquids.
3 0
2 years ago
Which answer choices correctly describe properties of covalent compounds?<br> Select all that apply.
Lana71 [14]

Answer:

Explanation:

A covalent compound is made when two or more nonmetal atoms bond by sharing valence electrons. The shared valence electrons between two nonmetal atoms is called a covalent bond. Covalent bonds are formed when two atoms begin sharing electrons

7 0
1 year ago
Read 2 more answers
Given the statements:
olga nikolaevna [1]
C. The salt bridge maintains the flows of ions and allows electrons to move from the anode to the cathode. 
3 0
2 years ago
Read 2 more answers
Victoria has a crate of vegetables that weighs 100 newtons. She exerts a force of 100 newtons to lift the crate with a pulley. W
Dennis_Churaev [7]

Simply put, MA = Force Out / Force in. That's the way it is usually stated. The force out is normally what you need to move. The force in is what you need to supply to get the force out. Most machines will give you an MA of more than 1. Some (like your arm) will give you less than 1 and others (like this one) will give you exactly one.

This one is frictionless, otherwise it would slip into less than one if it had friction.

Answer B


7 0
2 years ago
Read 2 more answers
Other questions:
  • Aqueous aluminum bromide and solid zinc are produced by the reaction of solid aluminum and aqueous zinc bromide . write a balanc
    11·1 answer
  • What mass of oxygen reacts when 84.9 g of iron is consumed in the following reaction: Fe+O2= Fe2O3
    9·2 answers
  • Which family on the periodic table is least likely to enter into chemical reactions? 1 2 17 18
    10·2 answers
  • If, as a pioneer, you wished to warm your room by taking an object heated on top of a pot-bellied stove to it, which of the foll
    9·1 answer
  • 25.0 ml of a 6.0 m hno3 stock solution is diluted using water to 100 ml. How many moles of hno3 are present in the dilute soluti
    15·2 answers
  • The list below includes some of the properties of butane, a common fuel. Identify the chemical properties in the list. Check all
    14·1 answer
  • The compound Xe(CF3)2 decomposes in a first-order reaction to elemental Xe with a half-life of 30.0 min. If you place 4.5 mg of
    14·1 answer
  • Which of the following describes a scenario in which the molecular geometry would have the smallest bond angle(s)? (A) four bond
    5·1 answer
  • In acidic solution, the breakdown of sucrose into glucose and fructose has this rate law: rate = k[H+][sucrose].
    8·1 answer
  • 1. What are small-scale techniques in chemistry? <br>​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!