when a flame is brought near a lump of coal, the coal slowly begins to burn. When the same flame is placed near the path of falling coal dust, an explosion occurs. What is the factor that causes the second reaction to have a faster rate of reaction? Concentration, surface area, temperature, or catalyst

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

the ratio of the conjugate base to the acid required to attain the desired ph.

1 is the answer to this problem