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
Anvisha [2.4K]
3 years ago
15

Explain, in your own words, why different elements produce different colors of light when heated.

Chemistry
2 answers:
QveST [7]3 years ago
8 0
As the electrons return o lower energy levels they gain energy in the form of light so this means that the colour of the light depends on the difference between two levels
fgiga [73]3 years ago
7 0
Different elements produce different colors of light when heated because the electrons in these elements have different permissible energy levels. When an element is heated, the electrons inside it become excited and move to an higher energy level from the ground state. When the electrons drop from this higher energy level, they typically emit energy quantum, the color of the light that is observed at this stage depends on difference that exist in the two energy levels.<span />
You might be interested in
Write the reaction that occurs when propyl methanoate is hydrolyzed in water and in NaOH
Free_Kalibri [48]

An ester , propyl methanoate ( HCOOC₃H₇) when reacts with sodium hydroxide( NaOH) forms sodium methanoate (HCOONa) as the main product and propanol (C₃H₇OH).

The reaction is as follows:

HCOOC₃H₇+NaOH ⇒HCOONa + C₃H₇OH

So when propyl methanoate is hydrolyzed in water and in NaOH then sodium methanoate (HCOONa) as the main product and propanol (C₃H₇OH) forms

5 0
3 years ago
For double-helix formation, DG can be measured to be 2 54 kJ mol 1 ( 2 13 kcal mol 1 ) at pH 7.0 in 1 M NaCl at 25 8C (298 K). T
levacccp [35]

Answer:

ΔS = -661.0J/mol is the entropy change for the system

ΔS = -842J/mol.K is the entropy change for the surroundings

Explanation:

From the relationship between ΔG, T, ΔH and ΔS,

Mathematically, ΔG = ΔH - TΔS

TΔS = ΔH - ΔS

ΔS = ΔH - ΔS / T

but ΔG = -54 kJ/mol, ΔH = -251 kJ/mol and T = 25 °C (298 K)

plugging into the equation,

ΔS = -251 kJ/mol - ( -54 kJ/mol) / 298

ΔS  = -0.6610KJ/mol or in J.mol

ΔS = -661.0J/mol is the entropy change for the system

  • For entropy change for the surroundings = ΔS = ΔH/T
  • ΔS  = -251 kJ/mol / 298K
  • ΔS = -0.84KJ/mol.K or -842J/mol.K is the entropy change for the surroundings
8 0
3 years ago
What is the definition of quanititative observation
sukhopar [10]

Answer:

Quantitative observation is an objective collection of data which is primarily focused on numbers and values.

7 0
3 years ago
Mass=1.01 kg; volume =1000cm3
guajiro [1.7K]

Density = 1.01 g/cm^3 or 1.01 kg/dm^3 or 1010 kg/m^3

Density = mass/volume = 1010 g/1000 cm^3 = 1.01 g/cm^3 = 1.01 kg/dm^3

= 1010 kg/m^3


7 0
3 years ago
Two scientists were competing to earn some grant money to fund their research, because
Citrus2011 [14]
Societal and economical
3 0
3 years ago
Read 2 more answers
Other questions:
  • Asuming all orbitals are in the same energy level which type of orbital has the lowest energy?
    13·1 answer
  • What is the molecular weight of acetic acid??
    14·1 answer
  • How many grams of chromium (Cr) are present in 4.20 moles of the metal?
    8·1 answer
  • Which best describes an element?
    10·1 answer
  • Sodium (Na) and potassium (K) are in the same group in the periodic table. Sodium is in the 11th position. How many valence elec
    12·2 answers
  • A plot of velocity versus substrate concentration for a simple enzyme-catalyzed reaction produces a _____. This indicates that a
    11·1 answer
  • 1#
    5·1 answer
  • Why would a doctor most likely restrict a patient’s contact with other people while the patient receives internal radiation?
    13·2 answers
  • How to determine how many valence electrons an element has?
    12·1 answer
  • How do astronomers observe and learn about celestial<br> objects?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!