NEED HELP ASAP PLS Underline Answer 1. Which metal is the most reactive? How do you know this?

2. Rank the metals in order of increasing reactivity.

3. Give the chemical equations for each single replacement reaction that took place.

4. Was Fe3+ reduced? If so, what metal(s) acted as reducing agents?

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided