1answer.
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
liberstina [14]
3 years ago
9

Two copper pennies has a mass of 6.64g how many moles of copper do they contain​

Chemistry
1 answer:
Ann [662]3 years ago
3 0

Answer:

It contains 0.105 mole cu

Explanation:

You might be interested in
Identify each of the following mixtures as either homogeneous or heterogeneous and as a solution, a suspension, or a colloid.
Sergeeva-Olga [200]

Blood.

<span>Blood is heterogeneous because it has corpuscles (blood cells and platelets) physically suspended in blood plasma.   Blood plasma and the corpuscles have different properties and can be separated by methods such as centrifugation. Also, blood is considered a colloid suspension because it has the properties of both a colloid and a suspension. This is because the blood plasma acts as a colloid. More so, if blood was left to settle,then the blood cells would collect at the bottom hence taking the characteristic of a suspension. </span>

<span>Salad dressing.</span>

<span>Depending on the type of salad, it can either be a heterogeneous or homogeneous mixture. If the salad dressing is only of vinegar or any other oil, then it is a homogenous mixture. However, if it involves a mixture of vinegar and other oils, pepper, herbs, and etcetera, then it is a heterogeneous mixture</span>




4 0
3 years ago
Read 2 more answers
The picture compound has which bond?
Marina CMI [18]

Answer:

something

Explanation:

4 0
3 years ago
Read 2 more answers
What is the number of proton in this atom​
Vilka [71]

Answer:

There are 20 protons

Explanation:

4 0
3 years ago
The theoretical yield of 1,2-epoxycyclohexane is _______________ grams, when starting with 3.0 grams of trans-2-bromocyclohexano
Amanda [17]

Answer:

1.64g

Explanation:

The reaction scheme is given as;

2-bromocyclohexanol  --> 1,2-epoxycyclohexane + HBr

From the reaction above,

1 mol of 2-bromocyclohexanol produces 1 mol of 1,2-epoxycyclohexane

3.0 grams of trans-2-bromocyclohexanol.

Molar mass = 179.05 g/mol

Number of moles = mass / molar mass = 3 / 179.05 = 0.016755 mol

This means  0.016755 mol of 1,2-epoxycyclohexane would be produced.

Molar mass =  98.143 g/mol

Theoretical  yield = Number of moles * Molar mass

Theoretical  yield =  0.016755 * 98.143 ≈ 1.64g

7 0
3 years ago
2. (1:25) How much does the moon pull on the Earth?
stepladder [879]

Answer:

a. more than the earth pull on the moon sorry if false

6 0
2 years ago
Other questions:
  • True or false elements in the same colum have simular properties
    7·1 answer
  • Place a check next to each elementary reaction
    7·1 answer
  • 3) Calculate the percent by mass of 3.55 g NaCl dissolved in 88 g water.
    9·1 answer
  • Iron has a mass of 7.87 g per cubic centimeter of volume, and the mass of an iron atom is 9.27 × 10-26 kg. If you simplify and t
    5·2 answers
  • two critical requirements must be met before light elements, like hydrogen or helium, will fuse and form heavier elements. The t
    9·2 answers
  • Which element has chemical properties that are most similar to the chemical properties of flourine
    8·2 answers
  • Give an example of a balanced force.
    12·2 answers
  • In a double-replacement reaction, the _____.
    11·2 answers
  • What the recipe of momo​
    11·1 answer
  • Why are weather satellites useful in areas that are affected by hurricanes?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!