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
postnew [5]
3 years ago
15

Suppose that a fictitious element, x, has two isotopes: 59x (59.015 amu) and 62x (62.011 amu). the lighter isotope has an abunda

nce of 71.7%. calculate the atomic mass of the element x.
Chemistry
1 answer:
professor190 [17]3 years ago
4 0

The atomic mass of the element would simply be equal to the sum of the weighted average of each isotope, that is:

atomic mass = 59.015 amu * 0.717 + 62.011 amu * (1 – 0.717)

<span>atomic mass = 59.863 amu</span>

You might be interested in
7. Explain how magnetic potential energy can be transformed into kinetic energy. (1<br> point)
Arisa [49]
The potential energy by the magnetic field can turn into kinetic energy once the field is moving from the S pole to the N pole when it reaches the N pole it is potential energy when it exits the S pole it is kinetic energy.
5 0
1 year ago
Examplle of exchange reaction ​
boyakko [2]
An exchange reaction consists of both synthesis and decomposition reactions.
Here’s a complex example: AB + CD → AC + BD.
Another example might be: AB + CD → AD + BC.
7 0
2 years ago
You have a 15.0 gram sample of gold at 20.0°C. How much heat does it take to raise the temperature to 100.0°C?
Nadusha1986 [10]

Answer:

=154.8 J

Explanation:

The rise in temperature is contributed by the change in temperature.

Change in enthalpy = MC∅,  where M is the mass of the substance, C is the specific heat capacity and ∅ is the change in temperature.

Change in temperature = 100.0°C-20.0°C=80°C

ΔH=MC∅

The specific heat capacity of gold= 0.129 J/g°C

ΔH= 15.0g×0.129J/g°C×80°C

=154.8 J

7 0
3 years ago
Plz HELP I NEED THIS NOW!!!!!!!!!<br><br><br> What landscape region is Long Island located on?
Kobotan [32]

The landscape region  of Long Island is the Atlantic coastal plain.

4 0
2 years ago
Read 2 more answers
The following equation represents the type of reaction called
Eva8 [605]

Answer: C REDUCTION

Explanation:

Guessed after knowing oxidation isn't the answer. Got right

7 0
2 years ago
Other questions:
  • Which step in the process of protein synthesis occurs directly after mrna is assembled?
    7·1 answer
  • This biome has the nutrient poor soil
    6·1 answer
  • Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO3(s) → K
    6·1 answer
  • When 2-methyl-2,5-pentanediol is treated with sulfuric acid, dehydration occurs and 2,2-dimethyltetrahydrofuran is formed. Sugge
    11·1 answer
  • Identifying characteristics of atoms, using the periodic table, complete the table to describe each atom.
    5·2 answers
  • Explain how creativity can play a role in the construction of scientific questions and hypotheses.
    6·1 answer
  • Of molecules didn't exist how would life be different
    7·2 answers
  • Draw the structures of all possible isomers for the following complexes. Indicate which isomers are enantiomer pairs. (a) Bromoc
    9·1 answer
  • 26. A Grignard's reagent may be made by
    9·1 answer
  • How do I know which substance is being reduced? ​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!