Answer:
The correct answer is 5 moles of CO2 are produced.
Explanation:
The given reaction:
CH₄ (g) + 2O₂ (g) ⇔ CO₂ (g) + 2H₂O (g)
The given reaction is an illustration of a combustion reaction. Any reaction in which a substance is burnt in excess of oxygen to generate water and carbon dioxide is termed as a combustion reaction. From the given equation, it is clear that the moles of the formation of the products are in the ratio 1: 2, that is, if 10 moles of H₂O is produced, the production of 5 moles of CO₂ will be produced.
Let us multiply, the given equation with 5 we get,
5CH₄ + 10O₂ ⇔ 5CO₂ + 10H₂O
Hence, it is clear that with the formation of 10 moles of H₂O, formation of 5 moles of CO₂ will also take place.
When convergent happens:
•Deep ocean trenches
• volcanoes
• mountains
• earthquakes
When divergent occurs:
• new oceanic crust forms
• submarine mountain range
• volcanoes
• earthquakes
When transform occurs:
• faults
• earthquakes
• linear valleys
• stream beds split in half
Answer:
Option C
Explanation:
Litmus paper shows only whether the solution is acidic or basic, but not how strong it is.
=> Base turns the red litmus paper blue
=> Acid turns the blue litmus paper red.
Out of the given options, the charge of an electron was not contributed by Neils Bohr.
Answer: Option 2
<u>Explanation:
</u>
The electron's charge was determined by using oil drop experiments performed by Millikan. While Neil Bohr suggested that electrons are rotating in discrete energy levels termed as orbits.
The hydrogen model of Neil Bohr dealt with the quantum energy emission when electron excite from higher energy level to lower energy level. He also stated that there is a relationship between the outer shell and the chemical properties of elements.
So, the second option that is the charge of an electron is not contributed by Bohr as it was contributed by Millikan.
It is a reaction between an element and a compound that results in a different element and compound
