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
ser-zykov [4K]
3 years ago
8

What element produces violet light of approximately 412 nm?

Chemistry
2 answers:
Natali [406]3 years ago
8 0
a. Hydrogen

Hydrogen has a line at 410 nm.
Mercury has a line at 405 nm.
Sodium and neon have no lines near 412 nm.
irinina [24]3 years ago
4 0

Answer:

a. Hydrogen

Explanation:

Emission spectrum of hydrogen produces four main visible wavelengths out of which one is violet light at 412 nm.

Mercury has visible prominent lines of blue, green and yellow-orange.

Sodium has two prominent very close yellow wavelengths in its emission spectrum.

Neon spectra also consists of green to red lines but not violet light.

Thus, correct option is a.

You might be interested in
What is a compounds
V125BC [204]

a compound in chemistry, is any substance that is formed when two or more chemical elements are chemically bonded together. A prime example of this is H20. You are combining hydrogen to oxygen, giving you a compund element. I hope this helps you. :)

3 0
3 years ago
Determine if the results of the following word problem adhere to the Law of Conservation of Mass. 1. A chemist combines 4.9 g of
KiRa [710]

Answer: The results agree with the law of conservation of mass

Explanation:

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. On the reactant side, the total mass of reactants is 14.3g and the total product masses is also 14.3g. That implies that no mass was !most in the reaction. The sum of masses on the left hand side corresponds with sum of masses on the right hand side of the reaction equation.

4 0
3 years ago
The period of a ripple on a lake is half a second. what is the frequency of the wave
Nataly_w [17]

Answer:

2 Hertz

Explanation:

<em>The frequency would be 2 Hertz.</em>

<u>The frequency of a wave is defined as the rate at which the particles of a medium vibrates when the wave is passed through it while the period of a wave is the time it takes the particles to make a complete cycle of vibration.</u>

The frequency of a wave is inversely related to its period and is defined by the following equation:

f = 1/t, where f is the frequency (in hertz) and t is the period (in seconds).

Hence, if the period of a ripple is 1/2 or 0.5 seconds, the frequency becomes;

f = 1/0.5 = 2 Hertz

7 0
3 years ago
explain the law of conservative of energy, give a specific example using kinetic and potential energy that shows how energy is c
KiRa [710]

Answer:

The Law of Conservation of Energy states that energy cannot be created or destroyed. In other words, the total energy of a system remains constant. This is an important concept to remember when dealing with energy problems. The two basic forms of energy that we will focus on are kinetic energy and potential energy.

Explanation:

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

Im bad at these questions hope it helps and have a good day.

8 0
3 years ago
CHEMISTRY PLEASE HELP!!!???
Montano1993 [528]

1. Solids

- definite volume & shape

- little energy

-vibrate in place

- very incompressible


2. Liquids

- held together yet can still flow

5 0
3 years ago
Other questions:
  • Earthquakes cause other natural disasters, such as the disaster in this photo from a major earthquake that hit Alaska in 1964. W
    7·1 answer
  • What is the location on the surface direction above the earthquake focus called
    5·1 answer
  • Which group has different numbers of valence electrons
    7·1 answer
  • In a college of exactly 2940 students, exactly 60 % are male. What is the number of female students?
    7·2 answers
  • Compounds Lab Report
    11·2 answers
  • Which of these elements could be formed at the anode when a molten salt is electrolysed?
    9·2 answers
  • Given 5 Moles of H20. how many moles of O, are produced. Use the following Equation
    6·1 answer
  • C3H8 + 5O2 → 3CO2+ 4H2O, if 5.75L of oxygen are consumed in the above reaction, how many L of carbon dioxide are produced?
    15·1 answer
  • Equilibrium describes the balance that results from a forward and reverse reaction proceeding at equal rates. Since reaction rat
    12·2 answers
  • Predict the precipitate produced by mixing an Al(NO3)3 solution with a KOH solution. Write the net ionic equation for the reacti
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!