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
Reptile [31]
3 years ago
7

?

Chemistry
1 answer:
ASHA 777 [7]3 years ago
6 0

Because the 4s orbital is at a lower energy level.

The 4s orbital has a lower energy because it is more <em>penetrating</em> than a 3d orbital. A 4s electron can get closer the nucleus than a 3d electron, so it has a lower potential energy.

The other options are incorrect because they contradict the correct one.

You might be interested in
A person uses a pulley to raise a flag up a 15 meter flagpole. The weight of
GREYUIT [131]

Answer:

Explanation:

I burnt my ramen noodles today :) <3 help me <3 I need somewhere to live

8 0
3 years ago
5. How can you tell the difference between CuS and Cu2S
Oxana [17]
Prominent copper sulfide minerals include Cu2S (chalcocite) and CuS (covellite).
8 0
3 years ago
C12H26O + SO3+NaOH ----&gt; C12H25NaSO4+ H2O
Vlad [161]

Answer:

We can solve this by the method of which i solved your one question earlier

so again here molar mass of C12H25NaSO4 is 288.372 and number of moles for 11900 gm of C12H25NaSO4 will be = 11900/288.372

which is almost = 41.26 moles

so to get one mole of C12H25NaSO4 we need one mole of C12H26O

so for 41.26 moles of C12H25NaSO4 it will require 41 26 moles of C12H26O

so the mass of C12H26O = 41.26× its molar mass

C12H26O = 41.26×186.34

= 7688.38 gm!!

so the conclusion is If you need 11900 g of C12H25NaSO4 (Sodium Lauryl Sulfate) you need C12H26O 7688.38 gm !!

Again i d k wether it's right or wrong but i tried my best hope it helped you!!

4 0
3 years ago
Calculate the pH of the following?
Gwar [14]
The correct answer is c
4 0
3 years ago
A poundal is the force required to accelerate a mass of 1 lbm at a rate of 1 ft/s2, and a slug is the mass of an object that wil
Darya [45]
Remember the formula as per the second Law of Newton: F = m*a

And also remember that the weight is the force with which the mass is attracted by the planet (or satellite in the case of the moon).

With that information you can answer the questions:

a) Weight = F = m*a

m = 175 slugs = 175 lbm

i) Earth

a = 32.17 ft/s^2

Weight on Earth = 175 lbm * 32.17 ft / s^2 = 5,629.75 poundal

ii) Moon

a = [1/6] 32.17 ft/s^2

Weight on the Moon = [1/6]*5,629.75 poundal = 938.29 poundal

b) Force = 355 poundal
m = 25.0 slug

a in m/s^2 = ?

First calculate the force in ft/s^2

F = m*a => a = F/m = 355 poundal / 25.0 slug = 14.2 ft/s^2

Conversion:

14.2 ft / s^2 * [ 0.3048 m/ft] = 4.32816 m/s^2

Answer: 4.33 m/s^2


8 0
3 years ago
Other questions:
  • How many moles of carbon are in 3.5 moles of calcium carbonate? ______?
    6·2 answers
  • Consider the reversible reaction in aqueous medium shown below. At equilibrium, the concentrations of A, B, C, and D are 0.0053
    7·1 answer
  • Under certain conditions the solid and liquid states of water can exist in equilibrium how are these conditions indicated on the
    10·2 answers
  • Draw the Lewis Structure for NaCl
    14·1 answer
  • In 2005, scientists use cells from a dog named Tai to produce a new puppy with DNA identical to Tai’s. What genetic technology w
    10·2 answers
  • A student does an experiment to determine the molar solubility of lead(II) bromide. She constructs a voltaic cell at 298 K consi
    6·1 answer
  • A gas sample has volume 3.00 dm3 at 101
    10·1 answer
  • Cyclopropane, a substance used with oxygen as a general anesthetic, contains only two elements, carbon and hydrogen. When 1.00 g
    12·1 answer
  • The further away from the sun a planet is, the hotter it is. <br><br> True<br> False
    10·2 answers
  • The chemical substances in food that contribute to health, many of which are essential parts of a dietary pattern, are called:.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!