B. The surface of a silver cup turns black when it is exposed to air.
The World Is Too Much with Us" is a sonnet by the English Romantic poet William Wordsworth. In it, Wordsworth criticises the world of the First Industrial Revolution for being absorbed in materialism and distancing itself from nature. Composed circa 1802, the poem was first published in Poems, in Two Volumes (1807). Like most Italian sonnets, its 14 lines are written in iambic pentameter.
Answer : The velocity of the spaceship is, 
Solution :
As we are given that,
The speed of a spaceship = 7.58 wraps
So, 
The speed of light = 
Now put the value of speed of light in above expression, we get
So, 
The velocity of the spaceship = 
Now we have to convert the velocity of the spaceship m/s to cm/min.
Conversion :
(1 m = 100 cm)
(1 min = 60 sec)
The velocity of the spaceship = 
Therefore, the velocity of the spaceship is,
Answer: combustion reaction.
Explanation:
Gasoline is a mixture of hydrocarbons (with some other dded substances in minor proportion).
Assuming a hypothetical composition of the gasoline as C₅H₁₂ (only for explanation purposes), the chemical reaction that occurs when gasoline is burned is represented by:
- 2C₅H₁₂ + 16O₂ → 10CO₂ + 12H₂O + energy.
Combustion is a special type of chemical reaction, in which oxygen combines with other substance (element or compound) releasing a large amount of energy in the form of heat and light. It is a very common reaction of the hydrocarbons and the products are carbon dioxide and water in the form of vapor.
The combustion of carbon (C) is a very important and common reaction that has been using to produce energy: C(s) + O₂(g) → CO₂ (g)
Different substances can interact differently with light. So for me, I think the answer would be yes. It is possible <span>to conduct an UV/Vis spectroscopy experiment on a sample of the compound C3H3O2. Every substance is unique and has its own light interactions.</span>
