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
Tju [1.3M]
3 years ago
5

The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. T

he atomic mass and abundance of Cr-53 is 52.941 amu and 9.5%. The atomic mass and abundance of Cr-54 is 53.939 amu and 2.4%. Which is the average atomic mass of chromium?
A.51.94 amu
B.52.00 amu
C.52.19 amu
D.53.94 amu
Chemistry
1 answer:
Leviafan [203]3 years ago
3 0

Answer:

52.00 AMU

Explanation:

(49.946 * 0.043) + (51.941 * 0.838) + (52.941 * 0.095) + (53.939 * 0.024) = 51.998

Make sure to round, 52.00 AMU.

You might be interested in
Write the equilibrium constant expression, Kc, for the following reaction: If either the numerator or denominator is 1, please e
yanalaym [24]

Answer:

Explanation:

THE QUESTION SHOULD BE

Write the equilibrium constant expression, Kc, for the following reaction: If either the numerator or denominator is 1, please enter 1 CaCO3(s).

CaCO3(s) <=> Ca2+(aq) + CO32-(aq)

Write the mathematical form of the concentration of the products, then divide it by the concentration of the reactants as follows

Kc =[Ca2+]^1 . [CO32-]^1 / [CaCO3]^1

5 0
3 years ago
What is magnesium used for in its pure form
Sloan [31]

Answer: The pure metal has low structural strength, magnesium is mainly  used in the form of alloys- principally with 10% or less of aluminum, zinc, and manganese- to improve it's hardness, tensile strength, and ability to be cast, welded, and machined.

I hope this really helps you!!! :) And Have a fantastic day!!!

 

6 0
3 years ago
Which is one way that Dalton's atomic theory has been shown to be incorrect?
KATRIN_1 [288]
The answer is D. His belief is was that atoms could not be split. That is what was disproved really fast ;)
6 0
3 years ago
AP chem. Sublevels!!!!!!!!!!!
slavikrds [6]

Answer:

2d

Explanation:

The lowest d is 3d.

Hope this helps!

5 0
2 years ago
Describe how the height of the tides changes from Monday to Thursday.
adoni [48]
One of the results is that the moon is near the earth and the other one, the oceans tide. Even though the earth can hold any object within
ts proximity, the ocean is partly attracted due to its liquid property. At night, the ocean tends to be attracted to the moon by creating a bulge and assigning it as ‘high tide’. This is due to the strong gravitational pull of th moon to the earth.

I hope this helps!
This might be right..
5 0
3 years ago
Other questions:
  • To begin the experiment, 1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temper
    5·1 answer
  • The structures within the cytoplasm of a eukaryotic cell is what
    8·1 answer
  • What is the chemical formula for anionic surfactant (science)?
    9·1 answer
  • What types of elements join to form<br> molecular compounds?
    7·2 answers
  • A 1.00 g sample of a hydrogen peroxide (H2O2) solution is placed in an Erlenmeyer flask and diluted with 20 mL of 1 M aqueous su
    10·1 answer
  • Determine what type of functional group is present on formaldehyde (CH2O). What property is associated with this group?
    8·1 answer
  • Question 1 (True/False Worth 4 points) (03.06 LC) An instantaneous dipole occurs when a molecule's moving electrons are briefly
    10·2 answers
  • Carbon monoxide (CO) gas reacts with oxygen (O2) gas to produce carbon dioxide (CO2) gas. If 1.00 L of carbon monoxide reacts wi
    12·2 answers
  • What can affect the reaction RATE but not the rate constant?
    14·1 answer
  • The reactants A and B react completely in a sealed container to form a product. What is the mass of the product of the reaction
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!