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3 years ago

When salt dissolved in water, what type of change occurs?

Chemistry

2 answers:

hoa [83]3 years ago

6 0

A physical ,because it’s natural and can get it from the earth

Ira Lisetskai [31]3 years ago

4 0

A chemical change occurs. Nothing is physically doing anything to the salt because it is dissolving itself. Any ionic compound that is soluble in water would experience a chemical change.

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Calculate the standard cell potential of the following cell at 25°C. Sn(s) | Sn2+(aq) || Cu2+(aq) | Cu(s).

Semmy [17]

Answer:

0.48 V

Explanation:

Usually in the cell notation, the left side shows oxidation. So,

Oxidation half reaction:

$Sn_{(s)}\rightarrow Sn^{2+}_{(aq)}+2e^-$ $E^o_{ox}=-E^o_{red}=-(-0.14\ V)=0.14\ V$

Reduction half reaction:

$Cu^{2+}_{(aq)}+2e^-\rightarrow Cu_{(s)}$ $E^o_{red}=0.34\ V$

$E^o_{cell}=E^o_{ox}+E^o_{red}= (0.14+0.34)\ V=0.48\ V$

4 0

2 years ago

If you had an aqueous mixture that contained Ag+ , K+ , and Pb2+ cations, how many different solids could precipitate if a chlor

SCORPION-xisa [38]

Answer:

Two, KCl and PbCl₂.

Explanation:

Hello!

In this case, since the addition of chloride ions promote the following three ionic reactions:

$Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)\\\\K^+(aq)+Cl^-(aq)\rightleftharpoons KCl(aq)\\\\Pb^{2+}(aq)+Cl^-(aq)\rightleftharpoons PbCl_2(s)$

We can infer that both silver chloride and lead (II) chloride are precipitated products as their Ksp are 6.56x10⁻⁴ and 1.59x10⁻⁵ respectively, which means they are merely soluble in water.

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3 0

2 years ago

A thin sheet of aluminum can block _____.

BartSMP [9]

It can block light. Please mark Brainliest!!!

6 0

2 years ago

Helpppppppppp!!!!!!!!!

professor190 [17]

Answer:

Explanation:

the solution is extremely acidic and will dissolve the zinc rod

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2 years ago

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Alenkinab [10]

Nonrenewable
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2 years ago