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zmey [24]
3 years ago
12

Electrochemistry is defined as a science that deals with the relation of electricity to chemical changes and the interconversion

of chemical and electrical energy.
Which activity is most likely involved with the study of electrochemistry? 

neutralizing an acid with a base

producing a gas using a metal and an acid

placing two metal strips in an electrolyte

making a solution from crystals and water
Chemistry
2 answers:
Tanzania [10]3 years ago
6 0
Placing two metal strips in an electrolyte.
My name is Ann [436]3 years ago
4 0

Answer:

placing two metal strips in an electrolyte

Explanation:

In electrochemistry we study the conversion of electrical energy to chemical and chemical energy to electrical energy.

If we place two metal strips in an electrolyte, based on their electrode potential values, one of the metal strip will act as anode and other as cathode. The anode will undergo oxidation and cathode will undergo reduction. This can be like we pass electric current and electrolysis occurs or due to migration of electron electric current is produced. Both the cases will be studied in electrochemistry.

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raketka [301]
No they cant bc it is a noble gas.
3 0
3 years ago
What is the molarity of a solution made by mixing 2.80 g of koh with enough water make 750 ml of solution?
Travka [436]
<span>Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

2.80 g ( 1 mol / 56.11 g ) = 0.05 mol KOH

Molarity = 0.05 mol KOH / 750 mL ( 1 L / 1000 mL )
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7 0
3 years ago
Nitroglycerin (c3h5n3o9) is a powerful explosive. its decomposition may be represented by 4c3h5n3o9 → 6n2 12co2 10h2o o2 this re
professor190 [17]
The balanced chemical reaction describing this decomposition is as follows:
<span>4c3h5n3o9 .............> 6N2 + 12CO2 +10H2O + O2

From the periodic table:
mass of oxygen = 16 grams
mass of nitrogen = 14 grams
mass of hydrogen = 1 gram
mass of carbon = 12 grams
Therefore:
mass of </span><span>C3H5N3O9 = 3(12) + 5(1) + 3(14) + 9(16) = 227 grams
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From the balanced chemical equation:
4(227) = 908 grams of </span>C3H5N3O9 produce 32 grams of O2. Therefore, to know the amount of oxygen produced from 4.5*10^2 grams <span>C3H5N3O9, all we need to do is cross multiplication as follows:
amount of oxygen = (4.5*10^2*32) / (908) = 15.859 grams</span>
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