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ddd [48]
3 years ago
15

Balancing chemical equation ]

Chemistry
1 answer:
olga_2 [115]3 years ago
8 0

There no equation to balance.

Anyway

To be a balance equation the atom on the both side need to equal.

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Hydrogen sulfide burns form sulfur dioxide:
Helga [31]

Answer: 404.04 kJ.

Explanation:

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

moles of H_2S

\text{Number of moles}=\frac{26.7g}{34.1g/mol}=0.78moles

2H_2S(g)+3O_2(g)\rightarrow 2SO_2(g)+2H_2O(g)    \Delta H=-1036kJ

According to stoichiometry :

2 moles of H_2S on burning produces = 1036 kJ

Thus 0.78 moles of H_2S on burning produces =\frac{1036kJ}{2}\times 0.78=404.04

Thus the enthalpy change when burning 26.7 g of hydrogen sulfide is 404.04 kJ.

7 0
3 years ago
How can you identify an element that is a metalloid?
Dominik [7]
On the periodic table, the elements colored yellow, which generally border the stair -step line , are considered to be metalloids
7 0
3 years ago
This download is my science worksheet. It's about different types of energy in a situation, like examples. btw this is 7th grade
scoray [572]

All types of energy can be resumed into two basic types of energy which include kinetic energy and potential energy.

<h3>What is kinetic energy?</h3>

Energy is the ability to perform a given work. Kinetic energy is energy in movement, whereas potential energy is stored energy.

For example, plant photosynthesis makes reference to chemical energy (potential energy), popcorn makes reference to thermal energy, etc.

In conclusion, all types of energy can be resumed into two basic types of energy which include kinetic energy and potential energy.

Learn more about kinetic energy here:

brainly.com/question/25959744

#SPJ1

8 0
2 years ago
During dry weather, the water level in a small pond drops because of
Sophie [7]

Water levels tend to drop in dry weather because of evaporation. The hot temperatures will cause the water to achieve its gaseous state and go up into the atmosphere.
6 0
3 years ago
Madrid vs balonay soccor team why is Madrid better can u like compare it and Ik it say science and this rly is science my teache
nignag [31]

Eh I can't comment

That's y

No-one knows that I enter this site

Only a cousin knows

Cz I've got a protective family lol

4 0
2 years ago
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