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
Ivahew [28]
3 years ago
5

The average atomic mass recorded on the periodic table for cobalt is 58.933 u. This indicates that the most abundant isotope of

cobalt is ____.
A.) cobalt-57
B.) cobalt-58
C.) cobalt-59
D.) cobalt-60
Chemistry
1 answer:
OleMash [197]3 years ago
7 0
The average atomic mass of the element is the sum of the products of the percentage abundance of isotope and its mass number. Therefore, for atomic mass equal to 58.933, the most abundant isotope is cobalt-59. Thus, the answer is letter C. 
You might be interested in
When a 10 mL graduated cylinder is filled to the 10 mL mark, the mass of the water was measured to be 9.925 g. If the density of
Vlada [557]
Measured volume = 10 ml 
mass = 9.925 g 
density = 0.9975 g/ml
density = \frac{mass}{volume} 
so actual volume = \frac{mass}{density} = \frac{9.925}{0.9975} = 9.95 mL
Percentage Error = \frac{measured volume - Actual volume}{actual volume} x 100 
= \frac{10 - 9.95}{9.95} x 100 = 0.5 % error
5 0
3 years ago
Select the correct answer​
Vladimir79 [104]
C. 14 protons and 14 electrons
6 0
3 years ago
Which units are used to measure both velocity and speed? Select three options
Ede4ka [16]

Answer and Explanation:

The options aren't listed in your question, but here are some units that are regularly and normally used (in the classroom and in the outside world):

(The SI unit of distance and displacement is the meter. The SI unit of time is the second.)

<u>Meters per Second (m/s)</u>

kilometers per hour (km/hr)

kilometers per second (km/sec)

To find the average speed, you do distance divided by time.

To find the average velocity, you do the final position minus the initial position, divided by the final time minus the initial time.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

<em><u></u></em>

<em><u>I hope this helps!</u></em>

8 0
3 years ago
The ccl4 formed in the first step is used as a reactant in the second step. if 2.00 mol of ch4 reacts, what is the total amount
Leni [432]
<span>CH4 + 4 Cl2 → CCl4 + 4 HCl (4.00 mol CH4) x (1/1) x (0.70) = 2.80 mol CCl4 (4.00 mol CH4) x (4/1) x (0.70) = 11.2 mol HCl CCl4 + 2 HF → CCl2F2 + 2 HCl (2.80 mol CCl4) x (2/1) x (0.70) = 3.92 mol HCl 11.2 mol + 3.92 mol = 15.1 mol HCl from both steps</span>
8 0
3 years ago
How bad of alcoholic do you have to be to have your brain affected​
VLD [36.1K]

Answer:

Alcohol in Your Body

Alcohol reaches your brain in only five minutes, and starts to affect you within 10 minutes. After 20 minutes, your liver starts processing alcohol. On average, the liver can metabolize 1 ounce of alcohol every hour.

Explanation:

hope that helps you i just love sharing glmv sorry

3 0
2 years ago
Other questions:
  • ANSWER ASAP PLEASE
    14·2 answers
  • Whoever can answer these for me gets 100 points
    7·2 answers
  • An ion with an atomic number of 34 and 36 electrons has a __________ charge
    14·1 answer
  • A 29.05 gram sample of cobalt is heated in the presence of excess oxygen. A metal oxide is formed with a mass of 40.88 g. Determ
    12·1 answer
  • Why is the right side
    9·1 answer
  • 3 ejemplos de sublimacion<br>​
    5·1 answer
  • What word is used to refer to a group of organ systems working together?
    13·1 answer
  • Which statement best describes the availability of nonrenewable energy resources?
    6·2 answers
  • What does the electron configuration for the noble gases tell us about the elements in the<br> group
    5·1 answer
  • Identify indicators of a chemical reaction. check all of the boxes that apply. a black powder is added to a clear liquid. fizzin
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!