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What is the charge of an atom after it gains an electron during the formation of a bond? A. One positive charge B. Two positive charges C. Two negative charges D. One negative charge

A hydrated compound has analysis of 18.29% Ca, 32.37%CI, and49.34%H2O. What's its formula?

What is the relationship between particle size and wheathering rate

How many molecules of water are there in one mole of h2o

Explain how a rotating electric fan might be used to model the atom. explain how the rotating fan is unlike an atom.

Andy has two samples of liquids. Sample A has pH of 4, and sample B has a pH of 6. what can Andy conclude about these two samples? Sample A is a neutral b alkali c acidic Sample B is a neutral b alkali c acidic

How does a lone pair contribute to molecular shape? A. It is too small to affect the molecule's shape. B. It takes up space like an "invisible" atom. C. It forces the molecule into a tetrahedral shape. D. It lets the bonding pairs spread out more.

The are of a rectangle is 12 in^2. what is the area in cm^2. there are 2.54cm in an inch.

Which statements describe advantages of models? Check all that apply. Models make it possible to easily notice patterns. Models can be used to communicate and test design ideas. Models allow scientists to predict relationships.

Are energy levels and orbitals the same thing?