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3 years ago

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The oxidation state for Cl is A. -1 as a reactant and +1 as a product B. -1 as a reactant and 0 as a product C. -1 as a reactant

and -1 as a product D. +1 as a reactant and +1 as a product

1 answer:

Harlamova29_29 [7]3 years ago

8 0

Answer:

no sure

Explanation:

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Consider the following chemical reaction: 2KCl + 3O2 --> 2KClO3. If you are given 100.0 moles of KCl and 100.0 moles of O2...

g100num [7]

Answer:

O₂; KCl; 33.3

Explanation:

We are given the moles of two reactants, so this is a limiting reactant problem.

We know that we will need moles, so, lets assemble all the data in one place.

2KCl + 3O₂ ⟶ 2KClO₃

n/mol: 100.0 100.0

1. Identify the limiting reactant

(a) Calculate the moles of KClO₃ that can be formed from each reactant

(i)From KCl

$\text{Moles of KClO}_{3} = \text{100.0 mol KCl} \times \dfrac{\text{2 mol KClO}_{3}}{\text{2 mol KCl}} = \text{100.0 mol KClO}_{3}$

(ii) From O₂

$\text{Moles of KClO}_{3} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KClO}_{3}}{\text{3 mol O}_{2}} = \text{66.67 mol KClO}_{3}$

O₂ is the limiting reactant, because it forms fewer moles of the KClO₃.

KClO₃ is the excess reactant.

2. Moles of KCl left over

(a) Moles of KCl used

$\text{Moles used} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KCl}}{\text{3 mol O}_{2}} = \text{66.67 mol KCl}$

(b) Moles of KCl left over

n = 100.0 mol - 66.67 mol = 33.3 mol

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3 years ago

Because atoms are electrically neutral, the number of protons and _____ in an atom are equal.

Misha Larkins [42]

Answer: I believe that it's electrons please let me know if it was right or what it was!

Hope this helps!!! Good luck!!! ;)

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3 years ago

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muminat

The answer is a hope this helps

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2 years ago

Inside a room, the air is often warmer near the ceiling then near the floor. Which of the following accounts for this difference

Vanyuwa [196]

The correct answer is C. convection

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3 years ago

Please help me with this question<br> Thank you!

Elza [17]

Answer:

B. 3+

Explanation:

When Fe²⁺ loses an electron, it becomes an Fe³⁺ ion.

The loss of an electron in an atom makes the atom becomes positively charged. Further losing electrons makes the atom more positive.

For the given ion;

Fe²⁺ if it loses an electron more, it becomes Fe³⁺.

The expression is given as:

Fe²⁺ → Fe³⁺ + e⁻

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3 years ago