Look at these 2 reaction equations. Can you tell which
equation is endothermic and which equation is exothermic?

1. 2H202 --> 2H20 + 02+HEAT
and
2. Ba(OH)2 + 2NH4 + HEAT -->
BaCl2 + 2NH3 + 2H2O

SO...
which is which?

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

The answer is a) carbon-12

Ok where is the image ?

B? i feel like this is a trick