What is an ion and how is it useful?
What will be an ideal response?
If a force is exerted on an atom to the extent that an electron is dislodged or added, the atom is said to become an ion. The atom that loses an electron has a net positive charge and, thus, is called a positive ion; the atom that gains an electron is a negative ion. This phenomenon of being able to remove electrons from atoms, or ionizing them, makes it possible to store electrical power and to transfer that power from place to place.
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Bricks may carry a grade of SW, MW, or NW. Which factors determine the grade?
What will be an ideal response?
Finish treads are usually made of _____.
a. 1/2" stock b. 5/8" stock c. 5/4 stock d. 2 x 4 stock
How can urban food growing benefit the environment?
What will be an ideal response?
The openings in a sugar glider's wire mesh cage should be no more than ____________________ square inch(es) for adults
Fill in the blank(s) with correct word