Answer:
Here's what I get
Explanation:
Ethylamine has an N atom with a lone pair of electrons.
It can act as a Brønsted-Lowry base and accept a proton from water and become an ethylammonium ion.
The structure of the ion is shown below (there is a C atom at each of the four-way bond intersections).
Answer: Option (a) is the correct answer.
Explanation:
The given data is as follows.
wavelength of red photon (
) = 700 nm
wavelength of infrared photon (
) = 1750 nm
Therefore, calculate the wavelength of absorbed photon as follows.
= 
= 
or, 
= 
= 500 nm
Therefore, we can conclude that the wavelength of the absorbed photon is 500 nm.
Answer:
True.
Explanation:
To know which option is correct, let us calculate the number of mole present in 60g of calcium. This is illustrated below:
Mass of Ca = 60g
Molar Mass of Ca = 40g/mol
Number of mole Ca =....?
Number of mole = Mass/Molar Mass
Number of mole of Ca = 60/40
Number of mole Ca = 1.5 moles.
From the calculations made above, we can see that 1.5 moles are present in 60.0 grams of calcium
. How many unpaired electrons does an atom of phosphorous have in its (3) 3 (4) 5 its ground complete an atom 7. A possible set of quantum numbers for the last electron added to come ground state is mg A 4 0 + 2 B 3 0 +1 - C. 4 1 -1 +2 D. 3 -72 (1) A (2) B (3) C (4) D 8. A possible set of quantum numbers to describe an m. = + (2) n = 4, = 0, m = 0, m = -% (3) n = 4, { = 5, m =0 m, a 5s subshells (1) n=512 = 5, m = 0, m, = +% (4135.0 de in the 6p orbitals? 4 What is the maximum total number of electrons possible in the portal 10. A ground-state atom of manganese has unpaired electrons and is (2) 6. diamagnetic (3) 5, paramagnetic (4)3, paramagnetic (1)6 (2)4 3) w we take away two electrons from the outer shell of strontium, it would have the same elect configuration as what element? (1) krypton (2) germanium (3) argon (4) ma 12. The orbital diagram for a ground-state nitrogen atom is 1s 2s 2p 1. I 1 I I 2. Il a al 3. 1 1 1 1 4. Il II 1 (4) 4 -1) 1 (2) 2 (3) 3 NOUNCY of 3.4 x 1011 3 -1? (1m = 109
