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denpristay [2]
2 years ago
14

Why are we called carbon based life forms?

Chemistry
1 answer:
RoseWind [281]2 years ago
3 0
Because carbon is part of the element structure we are made of and other elements that we are made of are sulfur and nitrogen
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What do the spectral lines represent?
scZoUnD [109]

Question

What do the spectral lines represent?

Answer:

Spectral lines is defined by quantum mechanics in terms of energy levels of ions, molecules, and atoms. When electrons move from a higher level to lower one, photons are emitted and an emission line can be seen in the spectrum. As electrons jump down to the n=2 orbit, they emit photons of specific frequency (hence colour) that can be seen as emission lines in the visible part of spectrum.

Explanation:

8 0
2 years ago
Which is the correct definition of a compound?
Dmitriy789 [7]
A substance that has more than 2 atoms bonded together
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2 years ago
(a) Write the reaction for the overall oxidation of propane (C3H8) with oxygen to produce CO2 and water.
Pavlova-9 [17]

Answer:

Oxidation is the loss of electrons, that is, addition of electronegetive elements, example is addition of oxygen. Also, removal of electropositive elements, example is removal of hydrogen.

Explanation: a) In the presence of excess oxygen, propane burns in air, which gives the following chemical equation:

C3H8 + 5O2⇒ 3CO2 + 4H2O +Heat

b) When insufficient oxygen or too much oxygen is present for complete combustion, the following equation is given:

2C3H8 + 9O2 ⇒ 4CO2 + 2CO + 8H2O + Heat

c) At the anode( negative terminal): O∧2- ⇒ O + e

Oxygen accepts electron.

d) At cathode ( positive terminal): H∧+ + e∧- ⇒ H

Hydrogen donates electron

d) Nernst equation for reversal potential is given as follows:

E= RT/zF  In{ion outside cell}/{ion inside cell}= 2.303 RT/zF In{ion outside cell}/{ion inside cell}

4 0
3 years ago
the figure shows particles of a substance in a closed container. Which state of matter is shown in the figure?
FromTheMoon [43]
I don’t know not really sure just need the point sorry
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Is elemental phosphorus dull or high luster?
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