Answer:
D. all of the above
Explanation:
A and C are verified by Keplar's laws of planetary motion.
B is verified by the equatorial and polar aces of the Planet.
Answer:
One is chloroform, formerly used as an inhaled anesthetic during surgery, the primary use of chloroform today is in industry, where it is used as a solvent and in the production of the refrigerant freon.
Answer:
0.1 mol
Explanation:
Number of mole= mass/molar mass
lithium have a mass number of 7 and oxygen have a mass number of 16.
so, (7x2) + 16
= 30
therefore, number of moles = 2.93/30
= 0.10
We see that the molar ratio of sulfur to water is:
3 : 2
We first compute the moles of water:
moles = mass / Mr
moles = 37.4 / 18
moles = 2.08
By the ratio, moles of sulfur:
3.12
Mr sulfur = 64
mass = 3.12 x 64
mass = 199.7 grams