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chemical equations, reactions, and bonding in relation to th

18. when an atom of iron loses all of its 4s electrons and one of its 3d electrons, what is its charge?
a. 5+
b. 3+
c. 7+
d. 52

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

What causes most sediment to wash or fall into a river