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VLD [36.1K]
3 years ago
12

Explain acid rain and it effects to the environment​

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

Explanation:

Ian is looking at cells using a microscope. He sees a nucleus and a large vacuole in the central area of a cell. What type of cell is he most likely looking at?

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The reaction of hydrogen sulfide(g) with oxygen(g) to form water(l) and sulfur dioxide(g) proceeds as follows: 2H2S(g) 3O2(g)2H2
Aleks [24]

Answer: The value of \Delta H is 1118 .

Explanation:

To calculate the number of moles,  we use the equation:

\text{Moles of solute}=\frac{\text{given mass}}{\text{molar mass}}    

\text{Moles of} H_2S}=\frac{9.82g}{34.1g/mol}=0.288mol    

The balanced chemical reaction is:

2H_2S(g)+3O_2(g)\rightarrow 2H_2O(l)+2SO_2(g)

Given :

Energy released when 0.288 mole of H_2S is reacted =  161 kJ

Thus Energy released when 2 moles of H_2S is reacted = \frac{161}{0.288}\times 2=1118kJ

Thus the value of \Delta H is 1118.

3 0
3 years ago
You weigh two different objects on the same scale in the same location earth.the weighs are different.which must be different ab
soldier1979 [14.2K]
Their weights could be different.
Their volumes could be different. 
Their densities could be different.

The volume for an ounce of lead is much different than an ounce of aluminum.

the weight of a cubic meter of balsa wood is much different (and much lighter) than a cubic meter of water. That's why the ancients used balsa for their rafts.
8 0
3 years ago
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Is wood turning into smoke and ash a chemical change or physical change
ziro4ka [17]

Answer:

Explanation:

Its a chemical change

4 0
3 years ago
PLEASEEE HELP me on CHEMISTRY!! Will give brainliest!
Vlad [161]

Answer:

A Glucose C6H12O6 is a covalent compound while NaCl sodium chloride is a ionic compound.

B Stronger molecular forces are present in NaCl because ionic bond is stronger than covalent bond.

C melting point allow us to predict the strength of intermolecular forces

High melting point stronger molecular forces and vice versa.

Explanation:

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What is the molarity of a solution containing 18.2 g of KCl in 215 mL of KCl solution?
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The sum would be 69109.4944 ml if that's what you were asking

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3 years ago
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