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Science

Across
H2 + O --> H2O
Transfer of electrons
Cats are good
Very negative atoms
Dots around the element symbol
Heat gets added to the reactants
Carbon-14
A charged molecule
Pure water is a _______
Its "an-ion"
Down
Heat gets added to the products
Electron on the valence shell
You add coefficients to make is balanced
Horizontal row on the periodic table
Very positive atoms
Another phrase for bohrs diagram
Very neutral atoms
another word for shell
Building blocks of matter