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agasfer [191]
3 years ago
15

Breaking bonds requires what type of energy flow?

Chemistry
1 answer:
Rufina [12.5K]3 years ago
3 0

Explanation:

the energy that that is needed to break a bond is called the bond energy or dissciation energy

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As an employee of a summer sports camp, one of your jobs is to prepare the tank of vitamin water for use throughout the day. the
TiliK225 [7]
Given: 
Mixture of vitamin water = 75% pure water & 25% concentrated vitamin drink.  
To find:  
Quantity of water to be added to 16 gallons of concentrated vitamin drink to prepare a tank of vitamin water.  
Solution: 
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25% of x = 16 gallons (from given information)  
When 25% of x is 16 gallons, the remaining 75% of x will be calculated as below:
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3 0
3 years ago
What is the percentage yield of O2 if 12.3 g of KClO3 (molar mass 123 g) is decomposed to produce 3.2 g of O2 (molar mass 32 g)
My name is Ann [436]

Answer:

The percentage yield of O2 is 66.7%

Explanation:

Reaction for decomposition of potassium chlorate is:

2KClO₃ →  2KCl  +  3O₂

The products are potassium chloride and oxygen.

Let's find out the moles of chlorate.

Mass / Molar mass = Moles

12.3 g / 123 g/mol = 0.1 mol

So ratio is 2:3, 2 moles of chlorate produce 3 mol of oxygen.

Then, 0.1 mol of chlorate may produce (0.1  .3)/ 2 = 0.15 moles

Let's convert the moles of produced oxygen, as to find out the theoretical yield.

0.15 mol . 32 g/ 1mol = 4.8 g

To calculate the percentage yield, the formula is

(Produced Yield / Theoretical yield) . 100 =

(3.2g / 4.8g) . 100 = 66.7 %

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3 years ago
How is the pH of an acidic substance raised?
BabaBlast [244]

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Explanation:

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2 years ago
Describe the difference between heat and temperature in terms of kinetic energy
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Heat is the sum of all the kinetic energies of all the molecules of an object, while temperature is the average kinetic energy of the molecules of an object

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3 years ago
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