2 Which two substances cause iron to rust?

iron + water + oxygen → hydrated iron(III) oxide.

Iron and steel rust when they come into contact with water and oxygen – both are needed for rusting to occur.

Explanation:

water and oxygen

Explanation:

this is because

iron + water + oxygen > hydrated iron (III) oxide (which is rust in lame terms )

hope this helps

please mark it brainliest

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.