Compare between the performance of packed and fludized bed consider the following operational parameteris: pressure drop, temperature in the bed ,solid phase washout and bed clogging

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

What is the name of the enzyme that forms at the start of transcription?

Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning