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What grey rock that has crinoids and brachiopods reacts to hydrochloric acid?

User Scott H
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2 Answers

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Hey there Barney456,

What grey rock that has Crinoids and Brachiopods reacts to Hydrochloric acid?

Answer:

Limestone. It is found underwater. When marine organisms die their skeletons compact and form the limestone

Hope this helps :D

~Danielle♥
User Jameer Mulani
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The rock is limestone, I hope this helps!!
User Joe Love
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