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
Illusion [34]
3 years ago
12

The atomic mass of an element is the weighted average of the(1) number of protons in the isotopes of that element(2) number of n

eutrons in the isotopes of that element(3) atomic numbers of the naturally occurring isotopes of that element(4) atomic masses of the naturally occurring isotopes of that element
Chemistry
1 answer:
liberstina [14]3 years ago
4 0
It is a weighted average of the atomic masses of the naturally occurring isotopes of the element.
You might be interested in
Which of the following is not a part of every scientific investigation?
Dmitry_Shevchenko [17]

Answer:

the correct answer is Group of answer choices

6 0
3 years ago
Consider the following system at equilibrium where H° = 111 kJ/mol, and Kc = 6.30, at 723 K.
Rashid [163]

Answer:

1) The value of Kc:

C. remains the same.

2) The value of Qc:

A. is greater than Kc.

3) The reaction must:

B. run in the reverse direction to restablish equilibrium.

4) The concentration of N2 will:

B. decrease.

Explanation:

Hello,

In this case, by means of the Le Chatelier's principle which is based on the shift a chemical reaction could have under some modifications, we have:

1) The value of Kc:

C. remains the same, since it just depend the reaction's thermodynamics as it is computed via:

ln(K)=\frac{\Delta _RG}{RT}

2) The value of Qc:

A. is greater than Kc, since the reaction quotient is:

Qc=\frac{[N_2][H_2]^3}{[NH_3]^2}

Thus, the lower the concentration of ammonia, the higher Qc, making Qc>Kc.

3) The reaction must:

B. run in the reverse direction to restablish equilibrium, since ammonia was withdrawn and should be regenerated to reach the equilibrium.

4) The concentration of N2 will:

B. decrease, since less reactant is forming the products.

Best regards.

8 0
3 years ago
Read 2 more answers
Solve this word problem:
valina [46]

Answer:

The new acceleration becomes twice the pervious acceleration.

Explanation:

Given that,

Mass of the rock, m = 3 kg

Force, F = 1 N

We know that the force acting on an object is given by :

F = ma

a is acceleration of the rock

Put m = 3 kg and F = 1N,

a=\dfrac{F}{m}\\\\a=\dfrac{1}{3}\ m/s^2

If the force is doubled, F' = 2 N

So,

F'=ma'

a'=\dfrac{F'}{m}\\\\a'=\dfrac{2\times 1}{3}\\\\a'=\dfrac{2}{3}\\\\a'=2\times \dfrac{1}{3}\\\\a'=2a

So, the new acceleration becomes twice the initial acceleration.

3 0
3 years ago
HELP PLEASE I BEG OF YOU
Vitek1552 [10]

Answer:

37.7%

Explanation:

58% of 65 is 37.7%

7 0
2 years ago
How does hydrogen bonding affect water as it becomes colder and eventually freezes? (1 point)
Sergio039 [100]
The 2nd one I think but I need some points
5 0
2 years ago
Other questions:
  • Help asap ill give branilsit
    8·1 answer
  • Do all smells travel at the same speed
    8·1 answer
  • If the net force on a hot-air balloon is directed straight upward, which way does the acceleration point?
    12·1 answer
  • Atomic number, Mass Number, Number,<br> of neutrons, Number of Electrons, of 22Na+1​
    5·1 answer
  • Give structural formula of ethylene. What type of bond is found in between carbon and hydrogen? Why is the bond between carbon a
    13·1 answer
  • Write the electron configuration of the element that has Z = 3 *
    13·1 answer
  • A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is it’s density
    13·1 answer
  • E is solution of HCI of unk concentration f contain 4.8g of NaOH in 25cm point of salution​
    12·1 answer
  • elements are arranged in groups by similar atomic structure on the periodic table. this allows for an elements properties to be
    5·1 answer
  • What is the orbital hybridization of a central atom that has one lone pair and bonds to:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!