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4 years ago

The manufacture of steel is a very important process. complete this equation by balancing it. fe2o3 + c → fe + co2

2 answers:

7 0

The answer is $2Fe_2O_3 + 3C -> 3Fe + 3CO_2$

You must make sure each reactant has the same amount of subscripts on both sides of the equation.

taurus [48]4 years ago

6 0

Answer:

2Fe₂O₃ + 3C → 4Fe + 3CO₂

Explanation:

An equation is said to be balanced if there are equal number of atoms of one type on the reactants as well as the product side. The given equation is:

Fe₂O₃ + C → Fe + CO₂

# Reactants # Products

Fe = 2 Fe = 1

O = 3 O = 2

C = 1 C = 1

The equation is not balanced as there are different number of atoms of Fe and O on either side. In order to balance it, multiply Fe2O3 by 2, C by 3, Fe by 4 and CO2 by 3 to get:

2Fe₂O₃ + 3C → 4Fe + 3CO₂

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The two electrons in a helium atom occupy

IRINA_888 [86]

Answer:

the answer is A

Explanation:

4 0

3 years ago

a). Consider an ideal gas with an absolute temperature of T1. To what temperature would you need to heat the gas to double its p

Virty [35]

For an ideal gas, we use the ideal gas equation to relate pressure, volume and temperature changes. It is expressed as:

PV=nRT

For this case, we set V, n as constant.

P/T = nR/V = constant = k
P = kT

P1/T1 = P2/T2
P1/T1 = 2P1 / T2
T2 = 2P1(T1) / P1
T2 = 2T1

Therefore, in order to double the pressure of the system, we need to double the temperature as well at constant volume and number of moles.

7 0

4 years ago

Read 2 more answers

A mixture of CO (g) and excess O2(g) is placed in a 1.0 L reaction vessel at 100.0C and a total pressure of 1.50 atm. The CO is

umka2103 [35]

Answer:

Partial pressure of of CO₂ in the product mixture is 0,20atm

Explanation:

The balance equation is:

2CO(g) + O₂(g) → 2CO₂(g)

Total pressure of CO(g) and O₂(g) gases before reaction at 100,0°C and 1,0L is 1,50 atm. You can say:

X₁ + Y₁ = 1,50atm (1)

Where X₁ is initial partial pressure CO and Y₁ is initial partial pressure of O₂

After reaction partial pressures are:

X₂ = X₁ - 2n = 0; 2n = X₁

Y₂ = Y₁ - n

Z₂ = 2n

Where Z₂ is final partial pressure of CO₂

After reaction pressure at 100,0°C and 1,0L is 1,40 atm, that means:

1,40 atm = (Y₂ + Z₂)

1,40 atm = Y₁ - n + 2n

1,40atm = Y₁ + n

1,40 atm = Y₁ + X₁/2 (2)

Replacing (1) in (2)

1,40 atm = 1,50atm - X₁ + X₁/2

-0,10 atm = - X₁/2

0,20 atm = X₁.

As 2n = X₁; 2n = Z₂ = 0,20 atm

I hope it helps!

7 0

3 years ago

354.5 g of chlorine gas is held with a fixed volume of 70.0 L. What is the pressure of the gas in atmospheres if it’s temperatur

zaharov [31]

Answer: The pressure of the gas in atmospheres is 1.76

Explanation:

According to ideal gas equation:

$PV=nRT$

P = pressure of gas = ?

V = Volume of gas = 70.0 L

n = number of moles = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{354.5g}{71g/mol}=5moles$

R = gas constant = $0.0821Latm/Kmol$

T =temperature = $30.0^0C=(30.0+273)K=300.0K$

$P=\frac{nRT}{V}$

$P=\frac{5\times 0.0821Latm/K mol\times 300K}{70.0L}=1.76$

Thus the pressure of the gas in atmospheres is 1.76

7 0

3 years ago

What was used to build the phylogenetic

Gnom [1K]

A phylogenetic tree may be built using morphological (body shape), biochemical, behavioral, or molecular features of species or other groups. In building a tree, we organize species into nested groups based on shared derived traits (traits different from those of the group's ancestor).

8 0

3 years ago