Answer: 4
Explanation: The law of superposition states that in a sequence of rock layers, the youngest layer is on the top, and the oldest one is on the bottom, each being younger than the one beneath it and older than the one above it.
Data:
Molar Mass of Nickel = 58,7 g/mol
Solving:
58,7 g → 1 mol
y -------→ 2.63 mol
Solving: (They are proportional measures, the rule of three is made (directly proportional)
![\frac{58.7}{y} = \frac{1}{2.63}](https://tex.z-dn.net/?f=%20%5Cfrac%7B58.7%7D%7By%7D%20%3D%20%5Cfrac%7B1%7D%7B2.63%7D%20)
multiply cross
![1*y = 58.7*2.63](https://tex.z-dn.net/?f=1%2Ay%20%3D%2058.7%2A2.63)
Answer:
The law is given by the following equation: PV = nRT, where P = pressure, V = volume, n = number of moles, R is the universal gas constant, which equals 0.0821 L-atm / mole-K, and T is the temperature in Kelvin.
Explanation:
2.-> At the equivalence point, the pH = 7.00 for strong acid- strong base titrations.
3.-> A strong acid- strong base titration is performed using a phenolphthalein indicator. Phenolphtalein is chosen because it changes color in a pH range between 8.3 – 10. It will appear pink in basic solutions and clear in acidic solutions.
Answer:The atoms cool down and become slower and their bonds become close and they move less.
Explanation:I took science