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?

What is i fracture in the crust called when land move up, down or sideways

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive