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statuscvo [17]
2 years ago
9

How many grams of KClO3 are needed to make 30.0 g of KCI?

Chemistry
1 answer:
lawyer [7]2 years ago
6 0

Answer:

2KClO3 ==> 2 KCl + 3O2

393g O2 x 1 mole/32 g = 12.28 moles O2

moles KClO3 needed = 12.28 mol O2 x 2 mol KClO3/3mol O2 = 8.19 mol

grams KClO3 = 8.19 moles x 123g/mol = 1007g

Explanation:

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What type of reaction is AsCl+H2S --> As2S3+HCl
borishaifa [10]

Answer:

Double replacement:

Explanation:

Chemical equation:

2AsCl  +  3H₂S     →       As₂S₃ + 6HCl

The given reaction is double displacement reaction. In this reaction arsenic trichloride and hydrogen sulfide react and produced arsenic sulfide and hydrogen chloride. In double displacement reaction both anion an cation of reactants are exchanged with each other.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

General equation:

AB + CD → AD +CB

4 0
3 years ago
Please help me with this question !!!
Art [367]

Density of the vinegar is higher than the density of the oil.

Explanation:

Density of the vinegar is higher than the density of the oil. The consequence of this is that the oil will be the top layer in the pitcher while the vinegar is at the bottom layer in the pitcher.

When mixing oil and vinegar will not produce a mixture because the oil contains non-polar molecules while vinegar is a solution of acetic acid in water and both of them are polar molecules.

Learn more about:

liquids with different densities

brainly.com/question/9490207

#learnwithBrainly

4 0
3 years ago
Why are intensive properties useful for identifying a substance?
Lesechka [4]

Answer:

d

They do not depend on the amount of substance you have.

3 0
3 years ago
If you start with 89.3 g no(g) and 28.6 g h2(g), find the theoretical yield of ammonia.
Tatiana [17]
Balanced equation: 
<span>2 NO + 5 H2 ------> 2 NH3 + 2 H2O
 </span>
<span>2 moles NO react with 5 moles H2 to produce 2 moles NH3
 </span>
<span>Molar mass of NO = 30.00 g/mol </span>
<span>86.3g NO = 86.3/30.00 = 2.877 moles of NO </span>

<span>This will require: 2.877*5 / 2 = 7.192 moles of H2 </span>

<span>Molar mass of H2 = 2 g/mol </span>
<span>25.6g H2 = 25.6/2 = 12.7 mol H2. </span>
<span>You have excess H2 means the NO is limiting </span>

<span>From the balanced equation: </span>
<span>2 moles of NO will produce 2 moles of NH3 </span>
<span>2.877 moles of NO will produce 2.877 moles of NH3 </span>

<span>Molar mass NH3 = 17g/mol </span>
<span>Mass NH3 produced = 2.877 * 17 = 48.91g 

Hence the yield is = 48.91 g ~ 49 g</span>
3 0
3 years ago
Read 2 more answers
George operates a fishery. Last month, he noticed that the number of fish had decreased. Which discipline can provide valuable i
Solnce55 [7]

Answer:

Fisheries science. This discipline aims to study and understand fisheries biology, food web, the predator-prey relationship, stock status information, as well as the socioeconomic status of fishermen (commercial and substantial)

Explanation:

The information from this discipline will help environmental scientists understand why there is a decrease in fish in the ocean. The reasons can vary from over fishing to decline in the reproduction of fishes due to climate change.

8 0
3 years ago
Read 2 more answers
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