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oee [108]
4 years ago
8

Solid iron(II) hydroxide decomposes to form solid iron(II) oxide and liquid water. Write the balanced chemical equation for the

reaction described. Phases are optional.
Chemistry
1 answer:
Bess [88]4 years ago
5 0

Answer:

Fe(OH)_2_(_s_)~->~FeO_(_s_)~+~H_2O_(_l_)

Explanation:

The <u>formula</u> for iron (II) hydroxide is Fe(OH)_2

The <u>formula</u> for iron(II) oxide is FeO

The <u>formula</u> for liquid water is H_2O

The <u>reaction</u> would be:

Fe(OH)_2_(_s_)~->~FeO_(_s_)~+~H_2O_(_l_)

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What mass of propane could burn in 48.0 g of oxygen? C3H8 + 5O2 → 3CO2 + 4H2O
Ipatiy [6.2K]

Answer:

Mass = 13.23 g  

Explanation:

Given data:

Mass of oxygen = 48.0 g

Mass of propane burn = ?

Solution:

Chemical equation:

C₃H₈ + 5O₂     →      3CO₂ + 4H₂O

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 48.0 g/ 32 g/mol

Number of moles = 1.5 mol

now we will compare the moles of propane and oxygen.

              O₂           :          C₃H₈

               5            :            1

             1.5            :          1/5×1.5 = 0.3 mol

Mass of propane burn:

Mass = number of moles × molar mass

Mass = 0.3 mol × 44.1 g/mol

Mass = 13.23 g  

6 0
3 years ago
What is the volume of 12.0 moles of Cl2 gas at STP?
Ymorist [56]
The answer has to be 22.4L
3 0
2 years ago
The atoms, molecules, or compounds present at the start of a chemical reaction that participate in the reaction.
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For the first one the answer is B. and the second one is D.
4 0
3 years ago
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If a mass of a cube were 48.0g and its volume 24.0 cm3 what would its density be
EastWind [94]

Answer:

<h3>The answer is 2 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 48 g

volume = 24 cm³

We have

density =  \frac{48}{24}  \\

We have the final answer as

<h3>2 g/cm³</h3>

Hope this helps you

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3 years ago
when writing numbers using scientific notation, numbers greater than one have..... exponents and numbers less than one have.....
Sav [38]
Positive and negative
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