How many grams of NaHCO3 is required in the equation 2 NaHCO3 + 1 H2SO4 --> 2 CO2 + 2 H20 + 1 Na2SO4
when 0.161 g of CO2 is released.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

C. definite shape, definite volume. that is a solid.

Elements would be the right answer