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frozen [14]
2 years ago
10

Question 3 of 10

Chemistry
1 answer:
Westkost [7]2 years ago
3 0

Answer:

A. Decrease in temperature

Explanation:

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Any substance that does not ionize when dissolved or melted is called <br>​
Vikki [24]
The answer is nonelectrolyte
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4 years ago
Why are hydrocarbons insoluble in water?
FrozenT [24]
The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
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Assuming 1 mol of Fe3+ and 2 mol of SCN- were allowed to react and reach equilibrium. 0.5 mol of product was formed. The total v
zaharov [31]

Answer:

a. 0.5 mol

b. 1.5 mol

c. 0.67

Explanation:

Fe3+ + SCN- -----> [FeSCN]2+

a. The ratio of the product to Fe3+ is 1:1. Meaning that if 0.5 mol of product was produced up then 0.5 mol of Fe3+ was used. Leaving 0.5 mol remaining at equilibrium

b. The ratio of the product to SCN= is 1:1. Meaning that if 0.5 mol of product was produced up then 0.5 mol of SCN- was used. Leaving 1.5 mol remaining at equilibrium

c. KC =  0.5/(0.5*1.5) =  0.67

3 0
3 years ago
Measurements show that the enthalpy of a mixture of gaseous reactants increases by 186.kJ during a certain chemical reaction, wh
pshichka [43]
To begin with, as Delta H = variation in enthalpy is >0 , it means rxn is endothermic.
The rule says: Delta U = Delta H + W = 186 -179 = 7 kJ.
Where Delta U is variation in internal energy and W is the work done.
7 0
3 years ago
Why do you believe knowing how elements and compounds react together is essential in everyday matters?
mylen [45]

Scientist believe that about 25 of the known elements are essential to life. Just four of these - Carbon (C), Oxygen (O), Hydrogen (H), and Nitrogen (N), - make up about 96% of the human body.


These four elements are found in the basic structure of all biochemical molecules. For example, Glucose is a carbohydrate and it's molecular formula is C6H12O6 - each molecule of glucose is made up of 6 Carbon atoms, 12 Hydrogen atoms and 6 oxygen atoms.


The other elements found can be divided into two main groups - major elements and trace elements.


The human body functions as a result of a large number of the chemical reactions involving compounds of a of these elements.

4 0
3 years ago
Read 2 more answers
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