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
Natasha2012 [34]
3 years ago
15

The atomic mass of copper is 63.546 amu. Which of copper's two isotopes is more abundant: copper-63 or copper-65?

Chemistry
1 answer:
svet-max [94.6K]3 years ago
4 0

Answer:

Copper-63

Explanation:

Since atomic masses are averages of a certain element's mass from all of its isotopes, the average of the atomic mass will be closest to the most abundant isotope. Knowing that the mass of copper-63 is 63 amu and the average atomic mass of copper is 63.546, its most abundant isotope must be copper-63

You might be interested in
How many moles of aspartame are present in 1.00 mg of aspartame?
Diano4ka-milaya [45]

Answer:- There are 3.40*10^-^6 moles.

Solution:- It is a unit conversion problem where we are asked to convert mg of aspartame to moles. Aspartame is C_1_4H_1_8N_2O_5 and it's molar mass is 294.31 grams per mole.

mg are converted to grams and then the grams are converted to moles as:

1.00mg Aspartame(\frac{1g}{1000mg})(\frac{1mole}{294.31g})

= 3.40*10^-^6 moles of aspartame

So, there would be 3.40*10^-^6 moles of aspartame in 1.00 mg of it.

3 0
3 years ago
Name this compound Cr2(CO3)3
kiruha [24]

Answer:

Molecular Weight

Explanation:

Chromium(III) Carbonate Cr2(CO3)3 Molecular Weight -- EndMemo.

5 0
3 years ago
(20 Points) Which definition of "coarse" matches its use in the phrase "coarse focus?"
vlada-n [284]

Answer by YourHope:


Hi! :)


Which definition of "coarse" matches its use in the phrase "coarse focus?"


A) "rough in texture"


Have a BEAUTIFUL day~

7 0
3 years ago
Read 2 more answers
What are the himalayan mountains formed by❓
Vlad1618 [11]
The answer is, <span>The Himalayan mountain range and </span>Tibetan plateau<span> have formed as a result of the collision between the </span>Indian Plate<span> and </span>Eurasian Plate<span> which began 50 million years ago and continues today.</span>
6 0
3 years ago
Read 2 more answers
please help asap i will mark you as brainly and give u 10 points ( don’t mind the answer i accidentally clicked )
Ne4ueva [31]

Answer:

Negative 5

Explanation:

I am not 100% sure btw

6 0
2 years ago
Read 2 more answers
Other questions:
  • What term best defines the process that occurs when nuclei combine to produce a nucleus with more mass?
    8·2 answers
  • If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is _________
    11·1 answer
  • Find the density of a substance that’s had a volume of 24.7mL and a mass of 49.1g. Give the answer with two decimals.
    13·2 answers
  • 3 things to say when your girlfriend is sad?
    6·2 answers
  • Identify the single displacement reaction. 2H 2 + O 2 ⟶ 2H 2O Al 2S 3 ⟶ 2Al + 3S Cl 2 + 2KBr ⟶ 2KCl + Br 2 C 4H 12 + 7O 2 ⟶ 6H 2
    15·1 answer
  • Explain why are metals good conductors and why covalent bonds are not
    8·1 answer
  • a cylinder container is filled with air. its radius is 6cm and its height is 3.5cm. what is the volume of the air inside?
    9·1 answer
  • An ultraviolet ray of light has a wavelength of 1.5x10^-8 m. What is the ray's<br> frequency?
    9·1 answer
  • g In the elimination reaction of t-butanol and t-butyl bromide. A. They have a common intermediate and require a strong base B.
    14·1 answer
  • Fill in the reaction type and predicted products for:
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!