Questlon 25 of 25
2 Points
Substitute 4 for xand evaluate the expression below.
3x+9x

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159