Answer:
It is a chemical change.
Explanation:
When the electricity is off, the filament cools down to its original physical state. This physical process repeats every time the light is turned on and off. However, if the bulb is cracked and air is introduced, the oxygen in the air reacts with the tungsten filament which then undergoes a chemical change.
Answer:
When designers require rugged, tough materials for their projects, steel and titanium are the first options that come to mind. These metals come in a wide assortment of alloys - base metals imbued with other metallic elements that produce a sum greater than its parts. There are dozens of titanium alloys and hundreds more steel alloys, so it can oftentimes be challenging to decide where to begin when considering these two metals. This article, through an examination of the physical, mechanical, and working properties of steel and titanium, can help designers choose which material is right for their job. Each metal will be briefly explored, and then a comparison of their differences will follow to show when to specify one over the other.
Explanation:
in the ph. above
Answer:
Explanation:
Azimuthal maps projection is the easiest for plotting travel by airplane because Azimuthal maps make the UV plane to be tangent to the globe and it's make the directions from the center of projections to be correct and accurate to any other points , likewise circles are also projected directly to the straight lines on the plane. And this is because Any line that is normally drawn through the tangent point give distance correctly and accurately.
Answer : The correct option is, 
Explanation :
- Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. That means, the loss of electrons takes place.
Or we can say that, oxidation reaction occurs when a reactant losses electrons in the reaction.
- Reduction reaction : It is defined as the reaction in which a substance gains electrons. That means, the gain of electrons takes place.
Or we can say that, reduction reaction occurs when a reactant gains electrons in the reaction.
According to the electrochemical series, most likely to be reduced because
Hence, the ion most likely to be reduced is .
Answer:
No, no precipitate is formed.
Explanation:
Hello there!
In this case, since the reaction between silver nitrate and sodium acetate is:
In such a way, we can calculate the concentration of silver and acetate ions in the solution as shown below, and considering that the final total volume is 50.00 mL or 0.0500 L:
![[Ag^+]=\frac{20.00mL*0.077M}{50.00mL}=0.0308M](https://tex.z-dn.net/?f=%5BAg%5E%2B%5D%3D%5Cfrac%7B20.00mL%2A0.077M%7D%7B50.00mL%7D%3D0.0308M)
![[C_2H_3O_2^-]=\frac{30.00mL*0.043M}{50.00mL}=0.0258M](https://tex.z-dn.net/?f=%5BC_2H_3O_2%5E-%5D%3D%5Cfrac%7B30.00mL%2A0.043M%7D%7B50.00mL%7D%3D0.0258M)
In such a way, we can calculate the precipitation quotient by:
![Q=[Ag^+][C_2H_3O_2^-]=0.0308*0.0258=7.95x10^{-4}](https://tex.z-dn.net/?f=Q%3D%5BAg%5E%2B%5D%5BC_2H_3O_2%5E-%5D%3D0.0308%2A0.0258%3D7.95x10%5E%7B-4%7D)
Which is smaller than Ksp and meaning that the precipitation does not occur.
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