Answer:
C6H12O6.
Explanation:
Adding up the relative atomic masses of the elements
C + 2H + O
= 12 + 2*1 + 16.
= 30.
180 / 30 = 6 so the molecular formula is:
C6H12O6.
The equation for the overall reaction obtained by adding these equations is; 2NO₂(g) ⇒ N₂O₄(g)
<h3>How to simplify chemical equations?</h3>
We are given equations;
2NO₂(g) ----> 2NO(g) + O₂(g) ---(1)
2NO(g) -----> N₂(g) + O₂(g) -----(2)
N₂(g) + 2O₂(g) ----> N₂O₄(g) -----(3)
Add eq 1 and eq 2 to get;
2NO₂(g) + 2NO(g) ⇒ 2NO(g) + O₂(g) + N₂(g) + O₂(g)
2NO will cancel out to get;
2NO₂(g) ⇒ N₂(g) + 2O₂(g) -----(4)
Add eq 3 to eq 4 to get;
N₂(g) + 2O₂(g) + 2NO₂(g) ⇒ N₂O₄(g) + N₂(g) + 2O₂(g)
This will reduce to;
2NO₂(g) ⇒ N₂O₄(g)
The correct question is;
Consider the chemical equations shown here.
2NO₂(g) ----> 2NO(g) + O₂(g)
2NO(g) -----> N₂(g) + O₂(g)
N₂(g) + 2O(g) ----> N₂O₄(g)
What is the equation for the overall reaction obtained by adding these equations?
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Answer:
The goal of the alchemists, who practiced from 400-1400 AD, was to transmute common elements (like lead) into gold. The alchemists used symbols to identify elements, and made many important discoveries which led to the development of the modern science of chemistry.
Explanation:
Alchemists were contracted by the elite for practical purposes related to mining, medical services, and the production of chemicals, medicines, metals, and gemstones. Entrepreneurial opportunities were common for the alchemists of Renaissance Europe.
Alchemy was based on the belief that there are four basic elements in nature: air, fire, water and earth. Alchemy is an ancient practice shrouded in mystery and secrecy. Its practitioners mainly sought to turn lead into gold, a quest that has captured the imaginations of people for thousands of years
The difference between alchemy and modern chemistry is alchemy is based on a mystic, supernatural view of reality, whereas chemistry assumes reality is basically natural. That makes a huge difference, and chemistry would never have gotten very far if it had stuck with the old metaphysics.
Despite these connotations of the mythic and mystical, alchemical practice played an important role in the evolution of modern science to discover the relationship of humans to the cosmos and use that understanding to improve the human spirit. Alchemy was scientific but it was also a spiritual tradition.
Answer:
The answer to your question is V2 = 1.82 l
Explanation:
Data
Volume 1 = 77 l
Pressure 1 = 18 mmHg
Volume 2 = ?
Pressure 2 = 760 mmHg
Process
Use Boyle's law to solve this problem
P1V1 = P2V2
-Solve for V2
V2 = P1V1/P2
-Substitution
V2 = (18 x 77) / 760
-Simplification
V2 = 1386 / 760
-Result
V2 = 1.82 l
You can differentiate between ionic, covalent and molecular compounds by the fact that ionic compounds contain elements that include both a metal and a nonmetal. Molecular compounds contain both non metals covalently bonded to each other. While acids most often on their chemical formula start with the element of Hydrogen - H.
For Eg - sulphuric acid
H2SO4
hydrochloric acid - HCl.
