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OLga [1]
2 years ago
5

Given the chemical reaction Fe3O4 + H2 ⟶ Fe + H2O, identify the coefficient of H2O in the balanced equation.

Chemistry
2 answers:
Kay [80]2 years ago
5 0
Add 4H2 in the reactant side, that will give you 4H2O in the product side.
Genrish500 [490]2 years ago
4 0

Answer:

4 is the coefficient of H2O in the balanced equation

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Explanation:

we are part of one of the arms of the galaxies mostly because the centre is way to dense

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if you had to live near a volcano would you rather live near an explosive or nonexplosive volcano?explain.
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2 years ago
The atoms and molecules in a gas are in constant motion. Temperature is a measure of this motion. How are these related? As temp
Sedaia [141]

Here we have to choose the correct statement on the effect of temperature on the motion of the molecules and atoms of a gas.

As the temperature increases the molecules and atoms move faster.

As per the kinetic theory of gas molecules and atoms the kinetic energy (K.E.) of the atom or molecules is related to temperature by the equation

K.E. = \frac{3}{2}kT ( k = Boltzmann constant, T = temperature.

Thus as the temperature increases the K.E. increases thus the atom or molecules move faster.

With the decrease of temperature the movement of the atoms or molecules will be less and they will be near to each other.

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8 0
3 years ago
A sample of vinegar was found to have an acetic acid concentration of 0.8846 m. What is the acetic acid % by mass? Assume the de
jenyasd209 [6]

Answer:

5.3%

Explanation:

Let the volume be 1 L

volume , V = 1 L

use:

number of mol,

n = Molarity * Volume

= 0.8846*1

= 0.8846 mol

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MM = 2*MM(C) + 4*MM(H) + 2*MM(O)

= 2*12.01 + 4*1.008 + 2*16.0

= 60.052 g/mol

use:

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m = number of mol * molar mass

= 0.8846 mol * 60.05 g/mol

= 53.12 g

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density of solution = 1.00 g/mL

Use:

mass of solution = density * volume

= 1.00 g/mL * 1000 mL

= 1000 g

Now use:

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= 53.12 * 100 / 1000

= 5.312 %

≅ 5.3%

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3 years ago
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