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
dezoksy [38]
3 years ago
7

PLEASANSWERSOONThe elements on the Periodic Table that we use today are arranged by

Chemistry
1 answer:
OlgaM077 [116]3 years ago
4 0
The answer is atomic number.
Explanation: Meendelev believed in putting it in order by atomic mass but that didn’t make since so another scientist by the name of Henry Moseley arranged the elements by atomic number which made the periodic table make more since. Because they were in order of which properties they had.
You might be interested in
Studying energy involves determining the amount of energy an object has. This energy can be kinetic or potential, or it could be
Flura [38]

Answer: the answer is a

Explanation:

3 0
3 years ago
If a sodium atom loses an electron, is the resulting sodium ion positively charged or negatively charged?
maxonik [38]
Positively charged and the sodium ion would be a cation
5 0
3 years ago
16.
mixas84 [53]

Answer:

Explanation:

When going from top to bottom in any group of the periodic table, the atomic radius always tends to increase

8 0
2 years ago
What is the condition of the outside air at a certain time and place?
11111nata11111 [884]
Weather... weather is the obvious answer 
6 0
3 years ago
Read 2 more answers
A mixture of 14.2 g of H2 and 36.7 g of Ar is placed in a 100.0 L container at
TiliK225 [7]

a) The total pressure of the system is  1.79 atm

b) The mole fraction and partial pressure of hydrogen is  0.89 and 1.59 atm respectively

c) The mole fraction and the partial pressure  of argon is 0.11 and 0.19 atm.

<h3>What is the total pressure?</h3>

We know tat we can be able to obtain the total pressure in the system by the use of the ideal gas equation. We would have from the equation;

PV = nRT

P = pressure

V = volume

n = Number of moles

R = gas constant

T = temperature

Number of moles of hydrogen = 14.2 g/2g = 7.1 moles

Number of moles of Argon = 36.7 g/40 g/mol

= 0.92 moles

Total number of moles =  7.1 moles + 0.92 moles = 8.02 moles

Then;

P = nRT/V

P = 8.02 * 0.082 * 273/100

P = 1.79 atm

Mole fraction of hydrogen = 7.1/8.02 = 0.89

Partial pressure of hydrogen =  0.89 * 1.79 atm

= 1.59 atm

Mole fraction of argon = 0.92 / 8.02

= 0.11

Partial pressure of argon = 0.11  *  1.79 atm

= 0.19 atm

Learn more about partial pressure:brainly.com/question/13199169

#SPJ1

3 0
1 year ago
Other questions:
  • A _____ is a fracture or break in Earth's surface.
    10·1 answer
  • Can someone help me on some of these question please : )
    8·1 answer
  • What does cambium Mean answer
    6·2 answers
  • One of these element behaves partly as the alkaline metal as well as a halogen element
    8·1 answer
  • You have 125.0 mL of a solution of H3PO4, bu you don't know its concentration. if you titrate the solution with a 4.56-M solutio
    5·1 answer
  • What new characteristic did John Dalton add to the model of the atom?
    6·2 answers
  • Each 5-ml teaspoon of Extra Strength Maalox Plus contains 450 mg of magnesium hydroxide and 500 mg of aluminum hydroxide. How ma
    5·1 answer
  • An atom has 24 protons, 22 electrons, and 28 neutrons. What is the MASS # of the atom
    11·1 answer
  • How do I find lattice energy with the overall heat of dissolution of aluminum sulfate?
    13·1 answer
  • This image shows electronegativities of elements on the periodic table. Based on this information, which element is most likely
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!