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
Likurg_2 [28]
3 years ago
7

In the figure, which two lines appear to be parallel?

Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
7 0
I don’t understand. Is there a picture? Where are the options?
BARSIC [14]3 years ago
7 0

Answer:

I don't see a picture....

You might be interested in
Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
DedPeter [7]
Carbon + oxygen → carbon dioxide

Hope this helps!
4 0
3 years ago
Which statement describes one feature of Rutherford model of the atom
serious [3.7K]

\huge{ \color{magenta}{ \fcolorbox{magenta}{black}{ \huge{ \color{white}{ \fcolorbox{aqua}{black}{♡Answer♡ }}}}}}

<em><u>The Rutherford model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths.</u></em>

6 0
2 years ago
(5points) Na2[Fe(OH2)2(OH)I3]absorbs photons with energy of 191kJ/mol. Calculate the wavelength (in nm) for a photon absorbed by
AfilCa [17]

Answer:

626.7nm

Explanation:

The energy of a photon is defined as:

E = hc / λ

<em>Where E is the energy of the photon, h is Planck constant (6.626x10⁻³⁴Js), c is speed of light (3x10⁸m/s) and </em>λ is the wavelength of light

The energy of 1 photon is:

(191000 J / mol) ₓ (1 mole / 6.022x10²³) = 3.1717x10⁻¹⁹ J

Replacing:

3.1717x10⁻¹⁹ J = <em>6.626x10⁻³⁴Jsₓ3x10⁸m/s /  </em>λ

λ = 6.267x10⁻⁷m

as 1nm = 1x10⁻⁹m:

6.267x10⁻⁷m ₓ (1nm / 1x10⁻⁹m) =

<h3>626.7nm</h3>
6 0
3 years ago
The molecules of a substance must have what characteristics in order to be flexible
Goryan [66]
Answer:
            <span>The molecules of a substance which must have the <u>a</u></span><u>bility to move past one another</u> are said to be flexible.

Explanation:
                   Those substances are said to be flexible which can be bent without breaking. There are many substances which are hard in nature but still can be bent. The hardness of such materials is due to strong interactions between the molecules and the flexibility comes due to their amorphous backbone. Therefore, greater the crystalline level of macromolecules lesser is the flexibility and greater the amorphous character greater is the flexibility and vice versa. Also, the flexibility of polymers is increased by adding plastisizers in it. Plastisizers make the hard polymers flexible by breaking the crosslinkers and enabling the macromolecules to move past one another.

6 0
3 years ago
What is the electron configuration of the calcium ion?​
Elanso [62]
[Ar] 4s²
Let me know if you want a step by step!
Hope that helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • Why are the optimum conditions for the Haber process a temperature of 450°C and pressure of 200 atmospheres?
    10·2 answers
  • The partial pressures of the gases in a mixture are 0.875 atm O2, 0.0553 atm N2, and 0.00652 atm Ar. What is the total pressure
    7·2 answers
  • Heelppppppppppjgjghjhjhj
    6·1 answer
  • Where would you expect snow or rain to fall on a mountain?
    15·2 answers
  • Compare the two types of optical telescopes
    11·1 answer
  • GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect nor
    15·1 answer
  • Please help-----------------------------------------------------------------------------------------------------------a scientis
    8·1 answer
  • I wont graduate. Why can light be treated like a particle?​
    10·1 answer
  • As a bond between a hydrogen atom and a
    13·1 answer
  • in which level of organization would the roots of a plant most likely be classified? Please explain too
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!