Half equation reaction for 2KI+Cl2-I2+2KCl

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Answer 1

Answer:

Answer:

Explanation:

2kc

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Determine the number of moles 28.8 g Br2

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well, you would just divide 28.8 by the molar mass of Br2 (the gram amount on the periodic table x2 because there's two of them)

How does a scientific theory compare to a scientific law?

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Answer:

Explanation:

Scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept.

How many unpaired electrons does calcium have

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Answer:

Explanation:

The number of unpaired electrons in is 0

Answer:

4 unpaired electrons

Explanation:

becausd it have 4 unpaired electros it is paramagnetic

After reading a book about parrots, Tani wants to learn more about them. Which question could be answered through scientific investigation?A. Which bird’s eggs taste the best?
B. What substances make up an eggshell?
C. Which birds have the most beautiful feathers?
D. Which type of bird makes the best pet in an apartment?

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After reading a book about parrots, Tani wants to learn more about them. The question that could be answered through scientific investigation is letter B, ‘What substances make up an eggshell?’ The other choices cannot be answered through scientific investigation.

Answer:

Explanation:

In the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many grams of hydrogen gas will be produced from 125.0 milliliters of a 6.0 M HCl in an excess of Mg

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Since the Mg is in excess, therefore HCl will be fully consumed in the reaction.

The first step is to find the amount of HCl in mol

Let N (HCl) = amount of HCl in mol

N (HCl) = (6 mol HCL/L solution) *( 125 mL ) * (1 L/1000 mL) = 0.75 mol of HCl

Through stoichiometry

N (H2) = 0.75 mol HCl * (1 mol H2/ 2 mol of HCl)

N(H2) = 0.375 mol H2

Since we are asked for the number of grams of H2 (mass), we multiply this with the molar mass of hydrogen

M (H2) = 0.375 mol H2 ( 2 g H2 / 1 mol H2)

M (H2) = 0.75 g H2

Write and balance this equation. Solid iron reacts with fluorine gas to produce crystalline iron(III) fluoride.

Answers

The balanced equation is: 2Fe + 3F2 ⇒ 2FeF3

How to balance an equation?

A chemical equation needs to be balanced if you want to make the wide variety of the atoms of the reactants equal to the variety of the atoms of the goods.

Given,

Iron + fluorine ⇒ Iron Flouride

Fe + F2 ⇒ FeF3

Now to balance this reaction:

2Fe + 3F2 ⇒ 2FeF3

This reaction is balanced.

What is iron fluoride used for?

This medicine is a mixture manufactured from nutrients, iron, and fluoride. it's miles utilized in infants and youngsters to deal with or prevent deficiency because of terrible weight loss programs or low tiers of fluoride in drinking water and other sources.

Learn more about iron fluoride here: brainly.com/question/24072912

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Answer:

iron+flourine.............iron flouride

Fe+F2.............FeF3

the above reaction is not balanced

now to balance this reaction

2Fe+3F2...........2FeF3

now this reaction is balanced

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Are the strengths of the interactions between the particles in the solute and between the particles in the solvent before the solute and solvent are combined greater than, less than, or equal to the strengths of the interactions between solute particles and solvent particles after dissolution? Explain.

The release of energy from a molecule by the removal of hydrogen is known as A) oxidation B) active transport C) dehydration synthesis D) reduction