Answer: this ones old do you still need help on this one?
Explanation:
Answer:
1. A mole is the amount which contains as many elementary particles as there are atoms in 12 grams of carbon-12. It is also the unit used in measuring the amount of matter. A mole also refers to the Avogadro's number of particles present in any substance.
2. 1mole of NaOH contains 6.02x10^23 atoms.
Therefore, 3.8 moles of NaOH will contain = 3.8 x 6.02x10^23 = 2.288 x 10^24 atoms
3. Molar Mass of Ca(OH)2 = 40 + 2(16+1) = 40 2(17) = 40 + 34 = 74g/mol
Explanation:
Answer:
![a=\frac{f}{d-e}-\frac{b}{c}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bf%7D%7Bd-e%7D-%5Cfrac%7Bb%7D%7Bc%7D)
Explanation:
Hello.
In this case, for the equation:
![(a+b/c)(d-e)=f](https://tex.z-dn.net/?f=%28a%2Bb%2Fc%29%28d-e%29%3Df)
For isolating a, we must first pass (d-e) to divide at the other side as it is initially multiplying:
![a+b/c=\frac{f}{(d-e)}](https://tex.z-dn.net/?f=a%2Bb%2Fc%3D%5Cfrac%7Bf%7D%7B%28d-e%29%7D)
Next, as b/c is adding, it passes to subtract at the other side in order to finally isolate a:
![a=\frac{f}{d-e}-\frac{b}{c}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bf%7D%7Bd-e%7D-%5Cfrac%7Bb%7D%7Bc%7D)
Best regards!
Zero
In nature, processes are driven by the natural tendency to form the most stable products. Therefore, elements in nature are expected to exist with no net charge to them because they become unstable when they are charged.
When elements or atoms are charged, they will find ways to neutralize their charges to once again form substances with no net charge.
Any positive number of Celsius is going to be above freezing. 0°C is the freezing point of water. 100°C is the boiling point of water. So 214°C is going to be extremely hot, as it is well above 400°F which is around the temperature many ovens use to cook food.
As for Neptune, what I could find out is the the surface is around negative 200°C which is extremely cold.