T=2T
m=10 g
m=m₀2^(-t/T)
m₀=m/{2^(-2T/T)=m/2⁻²
m₀=10/2⁻²=40 g
40 grams
Answer:
Water
Explanation:
Solid, liquids, and gases: Water can exist in several states, including ice (solid), water (liquid), and water vapor (gas). color (intensive)
density (intensive)
volume (extensive)
mass (extensive)
boiling point (intensive): the temperature at which a substance boils
melting point (intensive): the temperature at which a substance melts
Answer:
Chemistry reactions are used in art for the following processes;
1) Analog photography
The photographic paper used in analog photography react when exposed to light such that the image on the film stains the photopaper
A series of chemicals are further used to develop the images now carried on the paper and water is used to rinse of the chemicals after the other chemical processes are complete
The photopaper, now bearing the developed photo is hung for it to be dried
2) Paint used for painting consists of several chemicals, including, minerals that serve as pigment, oils that serve as carrying agent, a thinner to prevent the paint from turning to solid
An artist therefore combines different chemicals for a given paint task
3) In the sculpting process
An original sculpture is produced by the artist with the aid of clay or plaster, from the original sculpture, on which wax coatings and chemicals are used to make a replica mold.
Copies of the sculpture can then be made by pouring material into the mold
Explanation:
When we balance the given equation
POCl₃(g) ⇄ PCl₃(g) + O₂(g)
We will get
2POCl₃(g) ⇄ 2PCl₃(g) + O₂(g)
Solution:
Balancing the given equation
POCl₃(g) ⇄ PCl₃(g) + O₂(g)
Balancing the number of O
2POCl₃(g) ⇄ PCl₃(g) + O₂(g)
Balancing the number of P and Cl
2POCl₃(g) ⇄ 2PCl₃(g) + O₂(g)
We get the balanced equation
2POCl₃(g) ⇄ 2PCl₃(g) + O₂(g)
The reaction quotient will be
Qc = [product] / [reactant]
Qc = [PCl₃(g) + O₂(g)] / [POCl₃(g) ]
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