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
olga nikolaevna [1]
3 years ago
13

Please help me l don’t understand please !!!!!!

Chemistry
1 answer:
garik1379 [7]3 years ago
7 0

Answer: C

Explanation:

he never had evidence in the first place that was nearly enough.

You might be interested in
Blue and orange, which color can be best absorbed?
baherus [9]

Blue is the color that can be best absorbed, as orange is the color seen.

6 0
3 years ago
When an electron in a 2p orbital of a particular atom makes a transition to the 2s orbital, a photon of approximate wavelength 6
Mariulka [41]

Answer:

The energy difference between these 2p and 2s orbitals is 3.07\times 10^{-19} J

Explanation:

Wavelength of the photon emitted = \lambda =646.3 nm =646.3\times 10^{-9} m

Energy of the photon will corresponds to the energy difference between 2p and 2s orbital = E

Energy of the photon is given by Planck's equation:

E=\frac{hc}{\lambda }

h = Planck's constant = 6.626\tiomes 10^{-34} Js

c = Speed of the light = 3\times 10^8 m/s

E=\frac{6.626\tiomes 10^{-34} Js\times 3\times 10^8 m/s}{646.3\times 10^{-9} m}

E=3.07\times 10^{-19} J

The energy difference between these 2p and 2s orbitals is 3.07\times 10^{-19} J

3 0
4 years ago
013 10.0 points
34kurt

Answer:

this isn't immediately clear, it can be seen in ... CO2? 1. 6.0 × 10−23 g. 2. 44 g. 3. 7.31 × 10−23 g correct. 4. 6.0 × 10. 23 g. 5. 7.31 × 10 ... 40.0 grams of S will react leaving 10.0 grams. S unreacted. 013. 10.0 points ... FeCl2 and K2CO3 is ... 9. 1. There is no reaction. 2. KCl electrolyte. 3. CO2 gas. 4. FeCO3 precipitate. correct.

Explanation:

5 0
3 years ago
Binary Covalent (molecular) Compounds
prisoha [69]

Answer:

why is ur name different sexxxy............................................................

Explanation:

5 0
3 years ago
a carbohydrate is called an organic compound because it contains a) phosphorus b) carbon c) hydrogen d) oxygen
artcher [175]
Organic chemistry is all about CARBON!!!!!!
3 0
4 years ago
Other questions:
  • What is the smallest particle of an element that still retains all the properties of the element? a compound a mineral an atom a
    7·2 answers
  • Buscar en la Tabla Periódica Sargent Welch (S W) la configuración electrónica de los átomos indicados en a, b y c (para ésto pue
    15·1 answer
  • What is the meaning of the word solubility
    7·2 answers
  • In order for a solute to dissolve in a solvent, what must be true?
    5·2 answers
  • Distinguish between metals, ionic compounds, and covalent compounds using information about the physical properties of a compoun
    5·1 answer
  • Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase liquid nitrogen in insulated 195-L tan
    9·1 answer
  • A 0.500-g sample of chromium metal reacted with sulfur powder to give 0.963 g of product. Calculate the empirical formula of the
    10·1 answer
  • For pea plants, T represents a dominant allele for tall pea plants and t is the recessive allele for short pea plants. If two pl
    5·2 answers
  • Can someone please help me answer that question
    13·1 answer
  • Heat flows in the ocean and the atmosphere is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!