Molar mass is the given substance divided by the amount of that substance, measured in g/mol.
Example: titanium atomic mass is 47.88 amu or 47.88 g/mol. In 47.88 grams of titanium there is 1 mole, or 6.022 x 10^23 titanium atoms.
Hydrogen sulfide = hidrogen + sulfur
6.500 g
a) 0.384 g + x
=> 6.500 = 0.384 + x => x = 6.500 - 0.384 = 6.116 g
Answer: 6.116 g of sulfur must be obtained
b) this experiment demonstrate the conservation of mass.
c) Dalton's atomic model states that the atoms cannot be created, split or be destroyed, and so in a chemical reaction the atoms rearrange but the number of each type of atoms remain constant, so the mass of each type of atoms and the total mass remain constant.
The solar system's outer planets include Jupiter, Saturn, Uranus and Neptune. Their arrangement does not have any effect on the rest of the planets in the solar system, except for the fact that these planets are not in resonance to each other.
Hope this helps!
The answer should be (A) liquid to solid. This is because it releases the heat absorbed by it when it had changed into liquid.
The balanced net ionic equation for the reaction of aqueous sodium sulfide with aqueous lead(II) nitrate is Pb2+(aq) + S2-(aq) ===> PbS(s).
The chemical equation known as the net ionic equation only displays the substances that are directly involved in the chemical process. It is described how to write a net ionic equation. We only need to take out the spectator ions in order to formulate the net ionic equation. We are left with the net ionic equation after removing the spectator ions! The net ionic equation can be obtained by repeating this procedure for any reaction.
Na2S(aq) + Pb(NO3)2(aq) ===> 2NaNO3(aq) + PbS(s) ... molecular equation
sodium sulfide....lead(II) nitrate .........sodium nitrate.....lead sulfide
2Na+(aq) + S2-(aq) + Pb2+(aq) + 2NO3-(aq) ==> 2Na+(aq) + 2NO3-(aq) + PbS(s) ... complete ionic equation
Pb2+(aq) + S2-(aq) ===> PbS(s) ... net ionic equation
To know more about net ionic equation refer to: brainly.com/question/22885959
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