Moles of CaBr2 = 5/molar mass of CaBr2
= 5/199.886
= 0.025 moles.
Hope this helps!
Answer: Option (B) is the correct answer.
Explanation:
Molar mass is defined as the sum of masses of all the atoms present in a compound.
For example, atomic mass of barium is 137.32 g/mol and atomic mass of bromine is 79.90 g/mol.
Therefore, molar mass of
will be as follows.
Molar mass = atomic mass of Ba +
= 137.32 g/mol + 
= 297.12 g/mol
Hence, we can conclude that molar mass of [tex]BaBr_{2}[tex] is 297.12 g/mol.
The last set which is n=4 l=3 m=3 is a valid set
One day (24 hours), because one rotation of earth on its axis is the position of the countries to the sun shifting, thus resulting in the periods of sun and moon, (the day and the night).
Explanation: Plants using photosynthesis will take in carbon dioxide from the air, bring up water from the roots, and use sunlight as the energetic source to create sugar from water and carbon dioxide. Plants contain a molecule called chlorophyll, and the chlorophyll is what absorbs the sunlight