Yes.
Yes.
Okay, let's take the basics: There is no such thing as "copper sulfate baking powder", as it would be poisonous. I can think of no way to relate elemental nickel to the fictitious "copper sulfate baking powder".
A poisonous mushroom is a poisonous mushroom
A poisonous mushroom is a poisonous mushroom
Yes. It consists of nickel, nickel, and nickel.
no its not poisonous, it only bites
non-poisonous
There's no such thing as a lead coin. For one thing, lead is poisonous and second, it's far too soft for use in coinage. All 1936 nickels, like every other nickel except the "war nickels" of 1942-45, were made of an alloy of 75% copper and 25% nickel.
They are not poisonous.
They are not poisonous.
no, it is not poisonous
Yes, eye shadow can be poisonous to some living things. It is not poisonous to humans, but it can be poisonous to animals.