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2 years ago

14

Give two similarities in the products when chlorine, bromine and iodine react with iron

1 answer:

Jlenok [28]2 years ago

5 0

Answer:

Iodine. The reaction between hot iron and iodine vapor produces gray iron(II) iodide, and is much less vigorous. This reaction, the equation for which is given below, is difficult to carry out because he product is always contaminated with iodine. Iodine is only capable of oxidizing iron to the +2 oxidation state.

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Which conversion of energy always occurs in a voltaic cell?

kvasek [131]

(4) chemical energy to electrical energy is the correct answer.
Hope this helps~

4 0

3 years ago

Question - Complete and balance the following chemical equations:

Mekhanik [1.2K]

Answer is because
Please give feedback

6 0

2 years ago

The ion MnOis often used to analyze for the Fe2+ content of an aqueous solution by using the (unbalanced) reaction Mno+Fe2+ + Fe

dusya [7]

Answer:

B) 0.230 M

Explanation:

The first step is to <u>balance the reaction</u> between the Ferrous ion and the permanganate ion:

$5~Fe^+^2~+~MnO_4^-^1~+~8H^+~->~5Fe^+^3~+~Mn^+^2~+4H_2O$

Then we have to <u>calculate the moles</u> of $MnO_4^-$ :

$M~=~\frac{mol}{L}$

$mol~=~M*L$

$mol~=~0.033~M*0.0633L=~0.002088~mol~MnO_4^-$

Then using the <u>molar ratio</u> we can find the moles of $Fe^+^2$ :

$0.002088~mol~MnO_4^-\frac{5~mol~Fe^+^2}{1~mol~MnO_4^-}=0.01044~mol~Fe^+^2$

Finally we can calculate the molarity:

$M=\frac{0.01044~mol~Fe^+^2}{0.0455~L}=0.230~M$

5 0

3 years ago

In the reaction of sodium and oxygen, which atom is the reducing agent?

pishuonlain [190]

Sodium is the reducing agent because a reducing agent is always the donor of electrons.

8 0

3 years ago

O<br> Plz answer this plz plz plz

saul85 [17]

Answer:

Q1. C

Q2 and Q3 are correct.

Explanation:

Since F=ma, and the force is a constant,

for the greatest acceleration, the mass of the ball must be the least.

Thus ball C has the greatest acceleration.

Let's check:

A) F=ma

a=F/m

a= F/68

B) a=F/72

C) a= F/64 (✓)

The smaller the denominator, the larger the value of a.

(Think: 1/2 >1/3)

3 0

3 years ago