Chemistry, 01.07.2019 04:30, kimlyn58p0wyn0

Why is photosynthesis a chemical reaction?

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Chemistry, 21.06.2019 14:10, coralstoner6793

Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle

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Chemistry, 21.06.2019 14:50, stodd9503

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

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Chemistry, 22.06.2019 03:10, josephpezza18

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

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Chemistry, 22.06.2019 12:30, Svetakotok

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?