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
Answer:
T2 = 133.333°K
Explanation:
Using Combined Gas Laws:
(600 torr)(10L)/500°K = (200 torr)(8L)/x°K
Cross multiply:
x°K (600 torr)(10L) = 500°K(200 torr)(8L)
Divide:
x°K = (500°K(200 torr)(8L))/(600 torr)(10L)
x = 400/3°K or 133.333°K
Answer:
helium
Explanation:
it has 8 valence electrons which fills its outer energy level making it have a stable arrangement of electrons hence least reactive
Density = mass/volume
D = 500 g /200 cm^3
D = 2.5 g/cm^3
hope this helps!
Multiply this number by avogadro's number- 6.02 times 10^23
