Answer:
The second sample will produce 1563 grams of fluorine (F2)
Explanation:
The reaction will be MgF2 → Mg + F2
The stoichiometry ratio of MgF2 and F2 is 1 : 1.
That means for 1 mole of MgF2 consumed there is 1 mole of F2 produced.
The first sample produces 2.15 kg of magnesium and 3.36 kg of fluorine
The second sample produced 1 kg of magnesium and x kg of fluorine
This we can show in the following equation =
2.15kg / 3.36 kg = 1kg / x
2.15/3.36 = 0.63988
0.63988 = 1/ x
x= 1/0.63988 = 1.563 kg
1.563kg = 1563 grams
The second sample will produce 1563 grams of fluorine (F2)
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
<h3>Chemical formulae</h3>
A chemical formulae a set of chemical symbols showing the elements present in a compound and their relative proportions in that chemical compound.
The information provided by a chemical formula include:
- The atoms of elements present in the compound
- The ratio in which the elements are combined in the compound
- The state in which the compound occurs
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
Learn more about chemical formulae at: brainly.com/question/8007130
The redshift<span> of distant </span>galaxies<span> means that the Universe is probably </span>expanding. If we then go back far enough in time, everything must have been squashed together into a tiny dot and the rapid eruption from this tiny dot was the Big Bang. Another piece of evidence could be that because light takes a long time to travel across the Universe, when we look at very distant galaxies or stars we are also looking back in time. This shows us that galaxies a long time ago were quite different from those today, showing that the Universe has changed. This fits better with the Big Bang theory than the Steady State theory
Answer:
It is not a gas because its particles do not have large spaces between them.
Explanation:
