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
Andrej [43]
3 years ago
9

WILL MARK BRAINLIEST!!

Chemistry
1 answer:
frozen [14]3 years ago
7 0

Answer:

Na 1s2 2s2 2p6 3s1

Ar 1s2 2s2 2p6 3s2 3p6

Explanation:

You might be interested in
Element X consist of two isotopes with masses of 62.9 and 64.9. The relative atomic mass of the element is 63.6. What is th
koban [17]

Answer:

it is 50%

Explanation:

62.9x50=3145

64.9x50=3245

3245+3145=6390

6390/100=63.9

4 0
3 years ago
What is the molarity of the resulting solution when 300. mL of a 0.400 M solution is diluted to 800.
fenix001 [56]

Answer: 0.150 M

Explanation:

8 0
3 years ago
Read 2 more answers
What happens to the total amount of matter and energy during a chemical reaction ?
larisa86 [58]
It would be conserved
7 0
3 years ago
If 1.00 mol of argon is placed in a 0.500-L container at 27.0 degree C , what is the difference between the ideal pressure (as p
ElenaW [278]

Answer:

2.0 atm is the difference between the ideal pressure and  the real pressure.

Explanation:

If 1.00 mole of argon is placed in a 0.500-L container at 27.0 °C

Moles of argon = n = 1.00 mol

Volume of the container,V  = 0.500 L

Ideal pressure of the gas = P

Temperature of the gas,T = 27 °C = 300.15 K[/tex]

Using ideal gas equation:

PV=nRT

P=\frac{1.00 mol\times 0.0821 L atm/mol K\times 300.15 K}{0.500 L}=49.28 atm

Vander wall's of equation of gases:

The real pressure of the gas= p_v

For argon:

a=1.345 L^2 atm/mol^2

b=0.03219 L/mol.

(p_v+(\frac{an^2}{V^2})(V-nb)=nRT

(p_v+(\frac{(1.345 L^2 atm/mol^2)\times (1.00 mol)^2}{(0.500 L)^2})(0.500 L-1.00 mol\times 0.03219L/mol)=1.00 mol\times 0.0821 L atm/mol K\times 300.15 K

p_v = 47.29 atm

Difference :p - p_v= 49.28 atm - 47.29 atm = 1.99 atm\approx 2.0 atm

2.0 atm is the difference between the ideal pressure and  the real pressure.

6 0
3 years ago
Which describes a climate effect on the rate of weathering? Cold climates favor mechanical weathering. Chemical reactions occur
Alex777 [14]

Answer:

Cold climates favor mechanical weathering.

Explanation:

I just took the test and this is the correct answer!

5 0
3 years ago
Read 2 more answers
Other questions:
  • The ___ is the best part of an experiment that is not being tested and it used for comparison
    10·2 answers
  • Which ion is not an oxyanion? NO− SO4 2− CN− CO3 2−
    7·1 answer
  • The correct formula for the ionic compound formed between Ca and I is CaI <br> True or False
    9·1 answer
  • The amount of stored chemical energy is what determines the temperature of a
    10·2 answers
  • What is energy, and what is its unit of measure?
    5·2 answers
  • Geologists can use a radioactive isotope's to help determine the age of some rocks. A. half-life B. growth rate C. double-life D
    15·1 answer
  • Given that the mass number for carbon is 13, how many protons and how many neutrons does the isotope contain?
    10·1 answer
  • Write the following temperatures in ᵒC and ᵒF<br><br>Thank you for helping!​
    10·1 answer
  • Calculate the number of moles of H2 produced in the reaction of Mg(s) with HCl(aq). Mg(s) is the
    10·1 answer
  • A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical reaction that occurred is show
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!