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WARRIOR [948]
3 years ago
9

Please help im doing a test right now!!

Chemistry
2 answers:
lubasha [3.4K]3 years ago
8 0

Answer:

the first one is correct

Explanation:

the most reactive metals reat with cold water quickly but tn interactive one can't

Katen [24]3 years ago
5 0

Answer:

it's the first option!!!

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Explain why the column of a fractional distillation apparatus should be aligned as near to the vertical as possible
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<span><span>The column of a fractional distillation apparatus should be aligned vertical to get better separation because the column is essentially longer. It will prevent channeling in the column. </span>Therefore column efficiency will be higher if it is as vertical as possible instead of tilted.<span> Distillation is a process used to separate a mixture of two (or more) components. In a typical </span>fractional distillation, a liquid mixture is heated in the distilling flask and the process begins.</span>
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Write the Ka expression for an aqueous solution of hydrofluoric acid: (Note that either the numerator or denominator may contain
damaskus [11]

Answer:

Ka = ( [H₃O⁺] . [F⁻] ) / [HF]

Explanation:

HF is a weak acid which in water, keeps this equilibrium

HF (aq)  +  H₂O (l)  ⇄  H₃O⁺ (aq)  +  F⁻ (aq)      Ka

2H₂O (l)  ⇄  H₃O⁺ (l)  +  OH⁻ (aq)   Kw

HF is the weak acid

F⁻ is the conjugate stron base

Let's make the expression for K

K = ( [H₃O⁺] . [F⁻] ) / [HF] . [H₂O]

K . [H₂O] = ( [H₃O⁺] . [F⁻] ) / [HF]

K . [H₂O] = Ka

Ka, the acid dissociation constant, includes Kwater.

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Based on this experiment which substance has the highest specific heat capacity?
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I think it’s copper bc it’s a type of metal
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Definition of Absorption
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<span>the process or action by which one thing absorbs or is absorbed by another.</span>
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