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
lions [1.4K]
3 years ago
11

Which of the following is a weak base ?

Chemistry
2 answers:
Scrat [10]3 years ago
7 0
<span>NH3 is the answer, if u look up its ph its a weak base</span>
inysia [295]3 years ago
5 0

Answer:

NH3 (ammonia)

Explanation:

(apex)

You might be interested in
If oxygen, symbol o, undergoes a covalent bond it wants to form how many bonds
polet [3.4K]
Oxygen has 16 bonds in total
5 0
3 years ago
Read 2 more answers
What would happen if I swallowed a mento then drank some coca cola?
Sholpan [36]
Your stomach will bubble lol it might kind of tickle
4 0
3 years ago
Read 2 more answers
Technetium (Tc; Z = 43) is a synthetic element used as a radioactive tracer in medical studies. A Tc atom emits a beta particle
Sedaia [141]

Question in incomplete, complete question is:

Technetium (Tc; Z = 43) is a synthetic element used as a radioactive tracer in medical studies. A Tc atom emits a beta particle (electron) with a kinetic energy (Ek) of 4.71\times 10^{-15}J . What is the de Broglie wavelength of this electron (Ek = ½mv²)?

Answer:

6.762\times 10^{-12} m is the de Broglie wavelength of this electron.

Explanation:

To calculate the wavelength of a particle, we use the equation given by De-Broglie's wavelength, which is:

\lambda=\frac{h}{\sqrt{2mE_k}}

where,

= De-Broglie's wavelength = ?

h = Planck's constant = 6.624\times 10^{-34}Js

m = mass of beta particle = 9.1094\times 10^{-31} kg

E_k = kinetic energy of the particle = 4.71\times 10^{-15}J

Putting values in above equation, we get:

\lambda =\frac{6.624\times 10^{-34}Js}{\sqrt{2\times 9.1094\times 10^{-31} kg\times 4.71\times 10^{-15}J}}

\lambda = 6.762\times 10^{-12} m

6.762\times 10^{-12} m is the de Broglie wavelength of this electron.

3 0
3 years ago
How do chemists explain on a molecular basis
Juli2301 [7.4K]

Explanation:

It happens because particles of gas are in constant random motion. Thus they can collide with the walls of the container causing pressure on the walls.

4 0
2 years ago
Select the pair that has the larger atom or ion listed first.
Sedbober [7]

Answer:

Correc option: Br^- \, , Kr

Explanation:

size of atom : it says somthing about how many shell present in a particular atom or ion and it can also be evaluated on the basis of radius of atom.

Br^- and Kr has highest number of shell as compared to other group of species .

Na ,S , Mg ,P all are from 3rd period but Kr and Br^- in the 4th period so size of species of this group will more,

Size increases on increasring the shell number

3 0
3 years ago
Other questions:
  • Calculate the number of milligrams to 0.425 kg
    6·1 answer
  • I need help with #17 from my Chemistry homework...
    13·1 answer
  • Hydrogen can be obtained economically as a byproduct in the electrolysis of<br> what?
    14·1 answer
  • If you doubled the volume of a sample of gas and
    7·2 answers
  • Which statement best describes what the volume of an object represents
    7·1 answer
  • True or false, The mass of an electron is equal to the mass of a neutron.
    5·1 answer
  • If 4.00 moles of O2 occupies a volume of 5.0 L at a particular temperature and pressure, what volume will 3.00 moles of oxygen g
    15·1 answer
  • Investigation: Cells are the basic unit of life.
    9·2 answers
  • If two objects are experiencing the same amount of force, does that mean they will both experience the same amount of accelerati
    13·1 answer
  • Lab: Titration Assignment: Lab Report<br> I need the answer to the graph on the last page.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!