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
telo118 [61]
3 years ago
12

URGENT PLEASE ANSWER

Chemistry
1 answer:
Alona [7]3 years ago
5 0

Answer:

1. nucleus

2.14

3.14

4.3

5. 4+ or 4-

You might be interested in
What is the energy of light with a wavelength of 468 nm? (The speed of light
marshall27 [118]

The answer for the problem is explained below.

The option for the answer is "D".

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

Explanation:

Given:

wavelength (λ) = 468 nm = 468×10^-9 m

speed of light (c) = 3.00 x 10^8m/s

Planck's constant is 6.626 x 10^-34J·s

To solve:

energy of light (E)

We know,

E =(h×c) ÷ λ

E = ( 6.626 x 10^-34 ×  3.00 x 10^8) ÷ 468×10^-9

E = 4.25 × 10^-19 J

<u><em>Therefore the energy of the light is  4.25 × 10^-19 J</em></u>

6 0
3 years ago
Ba(NO3)2<br> What’s the atomic mass
Ahat [919]

Answer:

261.337 g/mol

Explanation:

3 0
3 years ago
What is a mol in chemistry
Snowcat [4.5K]
Molecular weight it stands for molecular weight






6 0
3 years ago
The role of pigments both in capturing light energy and in converting it to the chemical energy of ATP and NADPH.
Aleonysh [2.5K]

Answer:

The explanation of the processes in which pigments are involved (capturing light and forming ATP and NADPH) is given in the following paragraphs)

Explanation:

Pigments are molecules with the capacity of absorbing light. Each pigment captures light of a specific wavelength. Plants contain different types of pigments like chlorophylls, xanthophylls, carotenoids, and others.

Chloroplasts (organelles present in cells of plants), contain pigmants that absorb solar radiation, triggering a series of reactions collectively known as photosynthesis. When light incides on a pigment, an electron of this molecules is excitated, goes into another level of energy and starts to pass through a series of carrier molecules to finally to a final aceptor of electrons. During this transport, part of the energy contained in the electron is used to generates a hydrogen gradient that provides energy. As a result of these processes, a molecule that is called  NADP+ accepts two electrons and an hydrogen to form NADPH, while another molecule known as ADP captures  an atom of phosphorous and gives rise to ATP (through the action of a protein called ATP sintase)..

7 0
3 years ago
Why air is classified as a mixture​
Vika [28.1K]

Answer:

See explanation

Explanation:

Air contains a mixture of several molecules and compounds such as oxygen and carbon dioxide.

5 0
3 years ago
Other questions:
  • a car is traveling 55.0 miles per hour . convert this to meters per second . one miles is equal to 1.61 km
    14·2 answers
  • Electronic configuration of the element aluminum
    7·1 answer
  • A student requires 2.00 L of 0.100 M NH4NO3 from a 1.75 M NH4NO3 stock solution. What is the correct way to get the solution?
    9·2 answers
  • What is the conjugate acid of hpo22− ? express your answer as a chemical formula?
    14·1 answer
  • When did the first particles of matter originate
    10·1 answer
  • Milk spoiled is what type of change
    12·2 answers
  • How was Bohr’s atomic model different from Rutherford’s atomic model?
    8·2 answers
  • 1.
    5·2 answers
  • When a hydrate is heated to high temperatures, what is generally the product?
    5·2 answers
  • SO2+02➡SO3 <br>balance chemical equation​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!