What is the molas mass of lithium oxide li2o

Explanation:

Atomic mass means the sum of total number of protons and neutrons present in an element.

Molar mass is defined as the mass of one mole of a compound present in grams.  

For example, molar mass of is as follows.

      Molar mass of = 2 × atomic mass of Li + atomic mass of O

                                     =

                                     = 13.88 g/mol + 16.0 g/mol

                                      = 29.88 g/mol

Thus, we can conclude that molar mass of is 29.88 g/mol.

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.