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
elena55 [62]
3 years ago
7

Arrange the elements in order of increasing ionization energy: K,Br

Chemistry
1 answer:
Ilya [14]3 years ago
7 0
K has the lowest and Br has the higher
You might be interested in
12.70 L of a gas has a pressure of 0.63 atm. What is the volume of the gas at 105kPa?
Zielflug [23.3K]

Answer: 7.693 L

Explanation:

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are initial pressure and volume.

P_2\text{ and }V_2 are final pressure and volume.

We are given:

P_1=0.63atm\\V_1=12.70L\\P_2=105kPa=1.04atm(1kPa=0.009atm)\\V_2=?

Putting values in above equation, we get:

0.63\times 12.70mL=1.04\times V_2\\\\V_2=7.693L

Thus new volume of the gas is 7.693 L

6 0
3 years ago
Read 2 more answers
The acid-dissociation constants of HC3H5O3 and CH3NH3+ are given in the table below. Which of the following mixtures is a buffer
sergey [27]

Answer:

A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH

Explanation:

The pH of a buffer solution is calculated using following relation

pH=pKa+log(\frac{salt}{acid} )

Thus the pH of buffer solution will be near to the pKa of the acid used in making the buffer solution.

The pKa value of HC₃H₅O₃ acid is more closer to required pH = 4 than CH₃NH₃⁺ acid.

pKa = -log [Ka]

For HC₃H₅O₃

pKa = 3.1

For CH₃NH₃⁺

pKa = 10.64

pKb = 14-10.64 = 3.36 [Thus the pKb of this acid is also near to required pH value)

A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH

Half of the acid will get neutralized by the given base and thus will result in equal concentration of both the weak acid and the salt making the pH just equal to the pKa value.

8 0
3 years ago
Elements that exceed the octet rule must have an _______________. unoccupied s-orbital unoccupied p-orbital unoccupied d-orbital
Irina18 [472]
Elements that exceed the octet rule must have an unoccupied d orbital. I believe.
7 0
3 years ago
Chemistry
Katena32 [7]

When a solid turns into a liquid

Example: Ice cube melts into water

4 0
3 years ago
Read 2 more answers
What volume will 3.0 moles of O2 gas occupy at S.T.P?
REY [17]

Answer:

3 moles of oxygen at STP will occupy a volume of 3×22. 4=67. 2 L.

Explanation:

6 0
2 years ago
Other questions:
  • What is the molar mass, in grams, of a mole of an element equal to?
    11·1 answer
  • Propane has a long standing reputation for being a ______<br>burning fuel
    9·1 answer
  • What is the hybridization at each carbon atom in the molecule? write hybridizations starting on the left in molecule?
    6·1 answer
  • Why does an egg sink in fresh water but float in salt water??
    13·1 answer
  • Problem Page A chemist measures the amount of bromine liquid produced during an experiment. He finds that of bromine liquid is p
    12·1 answer
  • I need to know how to solve the equations.​
    6·1 answer
  • As the volume of a 1 mole sample of gas increases, with the temperature remaining constant, the pressure exerted by the gas:
    14·1 answer
  • Ions:
    15·1 answer
  • How is energy converted in a hydroelectric plant?
    9·1 answer
  • What does the group number of element 114 have to do with its stability?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!