Answer:
2-Tert-butyl-cyclohexanone, 2,6-Di-Tert-Butylcyclohexanone and Di-isopropyl-amine.
Explanation:
The difference between the initial mass (1.04 g) and the final mass (0.61g) is the mass of water present in the sample:
1.04 g - 0.61 g = 0.43 g
Divide by the molar mass of water: 18.01 g / mol to obtain the number of moles of water:
0.43 g / 18.01 g / mol = 0.0239 moles
Calculate the number of moles of dehydrated NiSO4
Number of moles = mass in grams / molar mass
molar mass of NiSO4 = 154.75 g/mol
number of moles NiSO4 = 0.61 g / 154.75 g/mol = 0.00394 moles
Now determine the molar ratio water to NiSO4: 0.0239 / 0.00394 = 6.07 ≈ 6
Then, the formula of the hydrate product is NiSO4 · 6 H2O.
Use the prefix hexa (6) to name the compound: Nickel(II) sulfate hexadydrate
Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Answer:
Explanation:
Balanced forces are opposite in direction and equal in size.
Balanced forces are in a state of equilibrium.
Answer:
Lunar eclipse
Explanation:
When the Earth is in between the Sun and the Moon, Earth blocks the sunlight falling on the moon.
Hope I provided some help, if not I at least tried.