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
Eddi Din [679]
2 years ago
14

The atomic masses of any two elements contain the same number of

Chemistry
1 answer:
den301095 [7]2 years ago
8 0

Answer:

They contain of atoms

Explanation:

That's because atomic weights or masses of each atom of each element are proportional to each other, the same number of atoms of each element will give masses that are also proportional to each other. If you start with 20 oxygen atoms, you will need 40 hydrogen atoms to make the water and you will get 20 molecules of water.

You might be interested in
Sort the sentences based on whether they describe the properties of a heterogeneous or a homogenous mixture.
klasskru [66]
Homogeneous Mixture: 
<span>It may be mistaken for a pure substance. 
</span><span>It can be separated using distillation
</span>
Heterogeneous Mixture:
<span>Its components are visible
</span><span>It can be separated using distillation.
Concrete is an example of this kind of mixture.
</span>
Hope this helps!
5 0
3 years ago
Read 2 more answers
Which of the following solutions would show the greatest conductivity at 30°C?
Nataly_w [17]
Your answer will be A
7 0
2 years ago
ASAP
nevsk [136]

I’m pretty sure it’s the second answer B

5 0
2 years ago
A 72.0 mL aliquot of a 1.40 M solution is diluted to a total volume of 248 mL. A 124 mL portion of that solution is diluted by a
Aliun [14]

Answer: 0.20 M

Explanation:

According to the dilution law,

M_1V_1=M_2V_2

where,

M_1 = molarity of stock solution = 1.40 M

V_1 = volume of stock solution = 72.0 ml

M_2 = molarity of diluted solution = m

V_2 = volume of diluted solution = 248 ml

1.40\times 72.0=m\times 248

m=0.41M

Now 124 mL portion of this prepared solution is diluted by adding 133 mL of water.

According to the dilution law,

M_1V_1=M_2V_2

where,

M_1 = molarity of stock solution = 0.41 M

V_1 = volume of stock solution = 124 ml

M_2 = molarity of diluted solution = m

V_2 = volume of diluted solution = (124 +133) ml = 257 ml

0.41\times 124=m\times 257

m=0.20M

Thus the final concentration of the solution is 0.20 M.

8 0
3 years ago
As electrical energy is converted into heat energy, the total amount in the system
Aleks04 [339]
<span>c. remains the same
</span>----------------------------------------------------
As electrical energy is converted into heat energy, the total amount in the system remains the same
--------------
according to law of conservation of energy
3 0
3 years ago
Read 2 more answers
Other questions:
  • An unstable nucleus which starts a decay process is called the _____.
    6·2 answers
  • What is the mass of 2.5 mol of ca, which has a molar mass of g/mol
    14·1 answer
  • Calculate the mass percent for all components in a solution containing the following. 0.350 Kg of water, 5.4 moles of ammonia an
    12·1 answer
  • The decomposition of ammonia is: 2 NH3(g) = N2(g) + 3 H2(g). If Kp is 1.5 × 103 at 400°C, what is the partial pressure of ammoni
    6·2 answers
  • What is the pH at the equivalence point in the titration of a 25.7 mL sample of a 0.370 M aqueous nitrous acid solution with a 0
    11·1 answer
  • How do you know a physical change has occurred when evaporating water produces gaseous water?
    9·1 answer
  • 1. This is very important in preventing the spread of pathogens in the kitchen.
    9·1 answer
  • Using spdf notation, what is the electron configuration for a neutral atom of beryllium
    9·1 answer
  • Convert 7.1x10^25 molecules of water to moles
    6·1 answer
  • The halogens are in Group 7 of the periodic table.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!