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2 years ago

Which chemical is the reducing agent in the redox reaction below?

Chemistry

1 answer:

posledela2 years ago

6 0

Option (a) is correct.

A reducing agent is the one which loses electrons to other substance.

Here, Zn has oxidation number 0 in the L.H.S of the equation, but on R.H.S its oxidation number is +2 i.e. it Zn has donated two of its electrons to $Fe^{2+}$ .

Hence, Zn is the reducing agent here.

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An atom has atomic number 5 and mass number 11. How many neutrons does the atom have?

Anna11 [10]

Answer: it’s 6

Explanation:

3 0

3 years ago

1-calculate the mass of 4 moles of Na

noname [10]

1. 92 g

2. 5.4 g

3. 0.217 moles

<h3>Further explanation </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

$\tt n=\dfrac{m}{MW}$

1. the mass of 4 moles of Na(MW= 23 g/mol)

$\tt mass=mol\times MW\\\\mass=4\times 23\\\\mass=92~g$

2. the mass of 0.3 moles of water(MW=18 g/mol)

$\tt mass=mol\times MW\\\\mass=0.3\times 18\\\\mass=5.4~g$

3. the number of moles found in 10g of ethanol C2H5OH(MW=46 g/mol) :

$\tt mol=\dfrac{10}{46}\\\\mol=0.217$

6 0

2 years ago

How many moles of O2 will be formed from 1.65 moles of KCIO3? (2KClO3–>2KCl + 3O2)

Oduvanchick [21]

Answer:

2.475 mol of O2 formed.

Explanation:

Given 1.65 moles of KClO3 as the target amount in the reactant, used the coefficient of the balanced chemical reaction involved to determine the number of moles of O2 molecules formed.

x mole of O2 = 1.65 mol KClO3 x [(3 mol O2)/ (2 mol KClO3)] = 2.475 mol of O2

x mole of O2 formed = 2.475 mol of O2

7 0

3 years ago

In nature, Chlorine-35 isotopes (35 amu) make up 75

dalvyx [7]

35 x 75% + 37 x 25% = 35.5

3 0

3 years ago

The type of radiation which is identical to a high energy electron is known as a(n). beta, alpha, or gamma particles

Schach [20]

The type of radiation which is identical to a high energy electron is known as a(n) beta.

Answer: A) or the first option.