Which of the following is the second strongest reducing agent? 1.ferrous ions
2.plumbous oxide
3.fluorine
4.manganese dioxide​

2

Explanation:

If you check out the activity series, you can see Manganese is highest on the list making it the strongest. Next on the activation series is Iron, meaning that 2 should be your answer.

a. they are both space stations

happy to

pls mark as brainliest.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance