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3 years ago

When the equation BiCl3 + H2S → Bi2S3 + HCl is the coefficient of HCl will be

1 answer:

6 0

The product Bismuth (III) sulfide ( $Bi_{2}S_{3}$ ) is used as a starting material for the synthesis of other bismuth compounds. It is formed, together with an acid, from a reaction between a Bismuth (III) salt and hydrogen sulfide ( $H_{2}S$ ). In the given reaction, the Bismuth salt used in the reaction is Bismuth (III) chloride ( $BiCl_{3}$ ).

The balanced reaction of $BiCl_{3}$ and $H_{2}S$ is

$2BiCl_{3} + 3H_{2}S --> Bi_{2}S_{3}+ 6HCl$

Thus, the coefficient of HCl in the reaction is 6.

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AnnyKZ [126]

Answer:

opposite

Explanation:

3 0

2 years ago

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Caculate the mass of a solid with a density of 14.2 g/cm cubed and a volume of 350 cm cubed

shepuryov [24]

Answer:

The mass of solid with density 14.2 g/cm3 and volume 350 cm3 is 4.97 Kg.

Explanation:

Formula for density is given below :

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

$volume = 350 cm^{3}$

$density = 14.2 g/cm^{3}$

Insert the values in the formula

$14.2 = \frac{mass}{350}$

on cross multiplication :

$mass = density\times volume$

$mass = 14.2\times 350$

$mass = 4970 g$

1 g = 0.001 Kg

$mass =4970\times 0.001 Kg$

mass = 4.97 Kg

Note : Check the units of volume and density carefully

8 0

2 years ago

Which substance is a product of a fermentation reaction?glucosezymaseethanolwater?

Makovka662 [10]

Answer is: a product of a fermentation reaction is ethanol (C₂H₅OH).
Fermentation is a metabolic process in which ethanol is produced from sugar in the absence of oxygen (anaerobic digestion).
Fermentation occurs in yeast, bacteria and in oxygen-starved muscle cells.
Fermentation is a way of extracting energy from molecules and it is the oldest metabolic pathway.

6 0

3 years ago

A balloon inflated in a room at 27 degrees celsius has a volume of 8.00 L.the balloon is then heated to a temperature of 78 degr

dangina [55]

This problem is being solved using Ideal Gas Equation.
PV = nRT
Data Given:
Initial Temperature = T₁ = 27 °C = 300 K
Initial Pressure = P₁ = constant
Initial Volume = V₁ = 8 L
Final Temperature = T₂ = 78 °C = 351 K
Final Pressure = P₂ = constant
Final Volume = V₂ = ?
As,
Gas constant R and Pressures are constant, so, Ideal gas equation can be written as,
V₁ / T₁ = V₂ / T₂
Solving for V₂,
V₂ = (V₁ × T₂) ÷ T₁
Putting Values,
V₂ = (8 L × 351 K) ÷ 300 K

V₂ = 9.38 L

5 0

2 years ago

_AI + _HCI —> _H2 + _AlCl3

SOVA2 [1]

Hey there!

Al + HCl → H₂ + AlCl₃

Balance Cl.

1 on the left, 3 on the right. Add a coefficient of 3 in front of HCl.

Al + 3HCl → H₂ + AlCl₃

Balance H.

3 on the left, 2 on the right. We have to start by multiplying everything else by 2.

2Al + 3HCl → 2H₂ + 2AlCl₃

Now we have 2 on the right and 4 on the left. Change the coefficient in front of HCl from 3 to 4.

2Al + 4HCl → 2H₂ + 2AlCl₃

Now, for Cl, we have 4 on the left and 6 on the right. Change the coefficient in front of HCl again from 4 to 6.

2Al + 6HCl → 2H₂ + 2AlCl₃

Now, our H is unbalanced again. 6 on the left, 4 on the right. Change the coefficient in front of H₂ from 2 to 3.

2Al + 6HCl → 3H₂ + 2AlCl₃

Balance Al.

2 on the left, 2 on the right. Already balanced.

Here is our final balanced equation:

2Al + 6HCl → 3H₂ + 2AlCl₃

Hope this helps!

7 0

3 years ago