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no, but use can use poketransfer from heartgold to white
No
Yes
In Pokémon HeartGold, you can find the White Flute in Route 47 in the Johto region.
You have to transfer from HeartGold or SoulSilver.
there are many legendary Pokemon in Pokemon heartgold, but the best is HO-OH
Pansear isn't in HeartGold, it's in Black/White, in the Unova region.
Reshiram is a Pokemon that is exclusive to the Black and White games; since Black and White were made after HeartGold and SoulSilver were released, it is impossible to get a legitimate Reshiram on your game.
No. If you wanted to, you could trade from HeartGold to Black and White, but not the other way around.
You cannot. Once in Black/White it cannot be sent back
heartgold and soulsilver
you can't only in Pokemon black and white.