True, Scientific theories may change with the addition of new information or improved experiments and observations.
Get a differ teacher, lots of definitions looked up on google, and a lot of note taking
Explanation:
According to Boyle's law, pressure of a gas is inversely proportional to its volume at constant temperature and moles.
Mathematically, P =
where, k = proportionality constant
Also, formula for initial pressure and volume is as follows.
or,
=
= 30 atm L
Now, we will calculate the value of as follows.
=
= 30 atm L
Hence, as this means that it signifies that gas obeys boyle's law.
Answer:
2/3
Explanation:
Crystals structures can also be seen when two elements combines together and the perfect example is Al₂O₃ which is given in the question above. Just like it is given in the question above, the kind of arrangement in the crystal structure for Al₂O₃ is called HCP which stands for Hexagonally Closed Pack.
The aluminum ions which is in form of Al³⁺ occupies the two-third[2/3] positions while the position that the oxygen ion occupies is one[1].
Oxidation is when molecules r removed of hydrogen or combination with oxygen normally liberates large quantities of energy.