/u/KingsmanVince's posts in /r/askscience

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Why do we use water to wash (make clean) barium sulfate and calcium carbonate?

2 upvotes

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Given 7 resistors with resistance 5 ohm each and 12 V DC power source. How many different electric circuits that you can form?

2 upvotes

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How do scientists know that dinosaurs had no hair when they were alive?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why do we use water to wash (make clean) barium sulfate and calcium carbonate?	2
Given 7 resistors with resistance 5 ohm each and 12 V DC power source. How many different electric circuits that you can form?	2
How do scientists know that dinosaurs had no hair when they were alive?	1