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What has four legs,is found at all festivities and is found outside? For the reaction, calculate how many grams of the product form when 2.0g of Mg completely reacts. 2Mg(s)+O2(g)→2MgO(s)? What happens when a carpenter strikes a nail a plank? Evaluate the double integral cos(x) sqrt 1+cos^2x dx dy? 22.50 hundred land is how many decimal land?