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Dahasolnce [82]
3 years ago
8

Write the complete balanced equation for the reaction between iron (III) oxide (Fe2O3) and water (H2O). You do not need to make

the subscripts smaller; just write them out as regular numbers. For example: Fe2O3
Chemistry
2 answers:
igomit [66]3 years ago
7 0
Fe2O3 + H2O → Fe2O3·H2O
This is a hydration reaction where the iron oxide is dissolved into the water.
Phoenix [80]3 years ago
5 0

Explanation:

An equation will be balanced if the number of reactants equals the number of products.  

The given reaction is as follows.

      Fe_{2}O_{3} + H_{2}O \rightarrow Fe(OH)_{3}

Number of atoms on reactant side are as follows.

  • Fe = 2
  • O = 4
  • H = 2

Number of atoms on product side are as follows.

  • Fe = 1
  • O = 3
  • H = 3

Thus, to balance the given equation we need to multiply H_{2}O on reactant side by 3 and Fe(OH)_{3} by 2 on the product side.

Therefore, the balanced chemical equation will be as follows.

      Fe_{2}O_{3} + 3H_{2}O \rightarrow 2Fe(OH)_{3}

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Which statement explains why water is classified
hichkok12 [17]

Answer: Option (1) is the correct answer.

Explanation:

Compounds are the substances which contain two or more different elements.

Similarly, water is a compound as it is made up when two hydrogen atoms combine with one oxygen atom. Compounds can be broken down with the help of chemical reactions.

Hence, the statement water can be broken down by chemical means explains why water is classified  as a compound.

5 0
3 years ago
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What is chemistry? I NEED HELP ASAP!
Thepotemich [5.8K]

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

3 0
3 years ago
Keera decided to investigate how the growth of plants is affected by the time of day it is watered. She placed an equal amount o
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7 0
3 years ago
7. The equilibrium constant Kc for the reaction H2(g) + I2(g) ⇌ 2 HI(g) is 54.3 at 430°C. At the start of the reaction there are
Juli2301 [7.4K]

Answer:

[H2] = 0.0692 M

[I2] = 0.182 M

[HI] =  0.826 M

Explanation:

Step 1: Data given

Kc = 54.3 at 430 °C

Number of moles hydrogen = 0.714 moles

Number of moles iodine = 0.984 moles

Number of moles HI = 0.886 moles

Volume = 2.40 L

Step 2: The balanced equation

H2 + I2 → 2HI

Step 3: Calculate Q

If we know Q, we know in what direction the reaction will go

Q = [HI]² / [I2][H2]

Q= [n(HI) / V]² /[n(H2)/V][n(I2)/V]

Q =(n(HI)²) /(nH2 *nI2)

Q = 0.886²/(0.714*0.984)

Q =1.117

Q<Kc This means the reaction goes to the right (side of products)

Step 2: Calculate moles at equilibrium

For 1 mol H2 we need 1 mol I2 to produce 2 moles of HI

Moles H2 = 0.714 - X

Moles I2 = 0.984 -X

Moles HI = 0.886 + 2X

Step 3: Define Kc

Kc = [HI]² / [I2][H2]

Kc = [n(HI) / V]² /[n(H2)/V][n(I2)/V]

Kc =(n(HI)²) /(nH2 *nI2)

KC = 54.3 = (0.886+2X)² /((0.714 - X)*(0.984 -X))

X = 0.548

Step 4: Calculate concentrations at the equilibrium

[H2] = (0.714-0.548) / 2.40 = 0.0692 M

[I2] = (0.984 - 0.548) / 2.40 = 0.182 M

[HI] = (0.886+2*0.548) /2.40 = 0.826 M

6 0
3 years ago
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Someone anyone give me tips to finish online homework because i have 30 assignments to do
MrMuchimi

Answer:

Ok! I have four tips!

Explanation:

Create A Time Table.

Gather Information For Your Online Assignments Beforehand.

Make Notes As You Read The Course Materials.

Start Doing Your Online Assignment In Advance.

6 0
3 years ago
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