Which of the following are acid/base reactions? Select all that apply. NaOH + Fel2=Fe(OH)2 + 2 Nal//
NH3 + HCI --> NHACI
H2O + Cu --> CuO + H2
HNO2 + H2O --> H30* + NO2-
None of the above​

What is the mass of 8 moles of sodium atoms

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point