Is it illegal to make and set these off in California?

I was going to make some bottle bombs and grenades and set them off in a street. Would this be illegal?
http://www.instructables.com/id/e53t5oi9...
Pepper Grenade
http://www.instructables.com/id/enhaqnjf...
Vinegar and Baking Soda Bottle Bombs
http://www.instructables.com/id/eme46jhz...
Mentos and Diet Coke Rocket

Answers:
i have a really cool cannon in NY and showed the ad in the magazine that i bought it from to the police dept b4 i bought it to be sure it was legal and yes that was legal. altho...neighbors complained even tho i went to their homes b4 i shot it off so that they wouldnt feel fearful but someone still called the police and they came and told me i couldnt shoot it. what they said is its legal as long as noone complains.


All i know is the mentos thing is not illegal
I'm sure some of it is. But in reality, only if you get caught. You might get busted for noise violations and possibly property damage
Yes, from my own experience it is.
No. None of them contain actual explosives. Vinegar & Baking Soda are used for volcanos in every JR.Hi. Science Fair. No worries. It would be smart to do it in an empty lot, or a really quiet street so no one rolls over your stuff.

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