Answer:
It is an example of Arrhenius acid-base reaction.
Explanation:
- In this reaction, water acts as an Arrhenius base because it consumes a proton from sulfuric acid.
- In this reaction, sulfuric acid acts as an Arrhenius acid because it donates a proton to water.
- Lone pair on oxygen atom in water is used to bind the proton obtained from sulfuric acid.
- Proton attached to -OH group in sulfuric acid is being donated because it is loosely bounded to oxygen atom due to high polarity of O-H bond.
- Reaction:
- Mechanism has been shown below.
No, all wavelengths/photons of light are emitted from excited electrons.
<h3>What is wavelength?</h3>
Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
When an atom's electrons move to a lower energy state, the atom releases energy in the form of a photon. Depending on the energy involved in the emission process, this photon may or may not occur in the visible range of the electromagnetic spectrum.
Hence, no, all wavelengths/photons of light are emitted from excited electrons.
Learn more about the wavelength here:
brainly.com/question/14644152
#SPJ1
A. Flueorescece. <span>The light from these ultraviolet lamps reacts with the chemicals of a mineral and causes the mineral to glow.
Hope I get Brainliest</span>
Answer:
decreases
Explanation:
warm water hold less dissolved oxygen than cold water because the molecules are moving faster.
The number of mole of lithium, Li needed for the reaction is 3.2 moles (Option D)
<h3>Balanced equation </h3>
4Li + N₂(g) → 2Li₂N
From the balanced equation above,
2 moles of Li₂N were obtained from 4 moles of Li
<h3>How to determine the mole of lithium needed </h3>
From the balanced equation above,
2 moles of Li₂N were obtained from 4 moles of Li
Therefore,
1.6 moles of Li₂N will be obtained from = (1.6 × 4) / 2 = 3.2 moles of Li
Thus, 3.2 moles of Li are needed for the reaction
Learn more about stoichiometry:
brainly.com/question/14735801