The atom that is most likely to lose an electron is lithium (Li).
<h3>What is electronegativity?</h3>
Electronegativity is the tendency, or a measure of the ability, of an atom or molecule to attract electrons when forming bonds.
On the other hand, electropositivity is the tendency of an atom to release electrons to form a chemical bond.
Chemical elements that lose electrons become positively charged while elements that gain electrons become negatively charged.
Metals are most likely to lose electrons to form positive ions. Examples of metals are lithium in group 1, calcium in group 2, aluminium in group 3 etc.
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If matter was not composed of atoms, the law definite proportions and law of multiple proportions will not hold true because compound would have random composition.
<h3>What is the law of definite proportions and law of multiple proportions?</h3>
The law of definite proportions states that all pure samples of a compound contains the same element in a fixed mass ratio.
The law of multiple proportions states that if an element combines with another element to form more than one compound, the mass of the element combines with a fixed mass of the other element in whole number multiples ratios.
Assuming matter was not composed of atoms, the law definite proportions and law of multiple proportions will not hold true because, their will be no definite ratio or composition in compounds.
The law definite proportions and law of multiple proportions are required for the atomic theory as they help prove that matter consists of definite unique particles called atoms.
In conclusion, the existence of atoms is proved true by the law definite proportions and law of multiple proportions.
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Answer:
pH = 4,70
Explanation:
For bromocresol, as HX is yellow and X⁻ is blue, the indicator will be a perfect green color when HX = X⁻.
Using Henderson-Hasselbalch formula:
pH = pka + log [X⁻]/[HX] <em>(1)</em>
Where pka is -log ka = -log2,0x10⁻⁵ = 4,70
As HX = X⁻, [HX] / [X⁻] = 1
Replacing in (1):
pH = 4,70 + log 1
pH = 4,70 + 0
<em>pH = 4,70</em>
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I hope it helps!
Answer: 126.977g
Explanation: 4.1mol x 30.97g/1mol
Answer:
it's A
Explanation:
It's a because you started with electricity as your source of energy and the new turn it into magnetical energy
