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irina1246 [14]
3 years ago
5

A substance that undergoes a change in a chemical reaction is

Chemistry
2 answers:
Stolb23 [73]3 years ago
4 0

Answer:

A) Product

Explanation:

the products is what is left after the reaction with has taken place

Montano1993 [528]3 years ago
4 0
The answer would be C
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A galvanic cell consists of a Cu(s)|Cu2+(aq) half-cell and a Cd(s)|Cd2+(aq) half-cell connected by a salt bridge. Oxidation occu
Kryger [21]

Answer:

Cd(s)|Cd^{2+}(aq) || Cu^{2+}(aq)|Cu(s)

Explanation:

A galvanic cell is composed of two electrodes immersed in a suitable electrolyte and connected via a salt bridge. One of the electrodes serves as a cathode where reduction or gain of electrons takes place. The other half cell functions as an anode where oxidation or loss of electrons occurs.

The representation is given by writing the anode on left hand side followed by its ion with its molar concentration. It is followed by a salt bridge. Then the cathodic ion with its molar concentration is written and then the cathode.

As it is given that cadmium acts as anode, it must be on the left hand side and copper must be on right hand side.

Cd(s)|Cd^{2+}(aq) || Cu^{2+}(aq)|Cu(s)

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4 years ago
How many equivalents are in a solution that contains 0.25 moles Mg2+ and 0.50 moles Cl–?
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Answer:

Explanation:

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molecular weight = equivalent weight

.50 mole = .50 equivalent

Total equivalent = .50 of Mg²⁺ + .50 of Cl⁻

= 1 equivalent .

7 0
3 years ago
What statement best explains how life functions a unicellular organism are carried out?​
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The structures in the cell work together to perform its life functions

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Help me. correct answer will be marked as brnlst
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Substances made of two or more elements which are not chemically bonded are known as
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