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3 years ago

Why do you believe knowing how elements and compounds react together is essential in everyday matters?

Chemistry

2 answers:

soldi70 [24.7K]3 years ago

8 0

Answer:

It is very important to known about the chemical reactions that takes place around us.

There are various types of chemical reactions taking place in our every day life. The burning of match stick, rusting of iron are chemical reactions that takes place in the body of organisms.

The compounds react together to form essential products which is formed. The matter that is formed in nature is combination if elements. Water and carbon dioxide form carbohydrates.

This is an example of combination of elements. There are many more examples which are seen in day to day life.

mylen [45]3 years ago

4 0

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.

You might be interested in

Which of the chemical equations is balanced?

Simora [160]

The third equation is properly balanced.

To figure this out, set up tables to check if each element has the same amount on both sides. If you do this for the third equation, copper, hydrogen, oxygen, and nitrogen are all balanced,

The first equation is incorrect due to the fact Iron, Fe, is not balanced on both sides. This is shown by the subscripts given.

The second equation is incorrect as Sulfur is not properly balanced and neither is sodium.

The fourth equation is incorrect as Aluminum is not properly balanced. On the reactants side, Aluminum is 4 while on the products, Aluminum is 8.

Hope this helps!

6 0

3 years ago

Can someone please help it’s chemistry in biology. it’s an emergency!!!!

yanalaym [24]

Reactants: Potassium and Diboride Trioxide
Products: Potassium Oxide and Boron
Balanced equation: 6 K + 1 B2O3 -> 3 K2O + 2 B

6 0

3 years ago

How many moles of argon are in 30.6L at 28K and 658 mmHg?

lesantik [10]

Answer : The number of moles of argon gas is, 11.5 mol

Explanation :

To calculate the moles of argon we are using ideal gas equation as:

$PV=nRT$

where,

P = pressure of argon gas = 658 mmHg = 0.866 atm (1 atm = 760 mmHg)

V = volume of argon gas = 30.6 L

n = number of moles of argon gas = ?

R = gas constant = 0.0821 L.atm/mol.K

T = temperature of argon gas = 28 K

Now put all the given values in the above formula, we get:

$(0.866atm)\times (30.6L)=n\times (0.0821 L.atm/mol.K)\times (28K)$

$n=11.5mol$

Therefore, the number of moles of argon gas is, 11.5 mol

6 0

3 years ago

Hi, can someone plz help me with how to answer this: The conservation of energy?<br> Thank You :)

Elis [28]

Total energy of an isolated system remains constant throughout time; this is referred to as conservation of energy.

6 0

3 years ago

Consider the reaction of ruthenium(III) iodide with carbon dioxide and silver. RuI3 (s) 5CO (g) 3Ag (s) Ru(CO)5 (s) 3AgI (s) Det

mixer [17]

Answer:

71.6 g of Ru(CO)₅ is the maximum mass that can be formed.

The limiting reactant is Ag

Explanation:

The reaction is:

RuI₃ (s) + 5CO (g) + 3Ag (s) → Ru(CO)₅ (s) + 3AgI (s)

Firstly we determine the moles of each reactant:

169 g . 1mol /481.77g = 0.351 moles of RuI₃

58g . 1mol /28g = 2.07 moles of CO

96.2g . 1mol/ 107.87g = 0.892 moles

Certainly, the excess reactant is CO, therefore, the limiting would be Ag or RuI₃.

3 moles of Ag react to 1 mol of RuI₃

Then 0.892 moles of Ag may react to (0.892 . 1) /3 = 0.297 moles

We have 0.351 moles of iodide and we need 0.297 moles, so this is an excess. In conclussion, Silver (Ag) is the limiting.

1 mol of RuI₃ react to 3 moles of Ag

Then, 0.351 moles of RuI₃ may react to (0.351 . 3) /1 = 1.053 moles

It's ok, because we do not have enough Ag. We only have 0.892 moles and we need 1.053.

5 moles of CO react to 3 moles of Ag

Then, 2.07 moles of CO may react to (2.07 . 3) /5 = 1.242 moles of Ag.

This calculate confirms the theory.

Now, we determine the maximum mass of Ru(CO)₅

3 moles of of Ag can produce 1 mol of Ru(CO)₅

Then 0.892 moles may produce (0.892 . 1) /3 = 0.297 moles

We convert moles to mass → 0.297 mol . 241.07g /mol = 71.6 g

8 0

3 years ago