Round all answers to hundredths (two decimal places). Do not put a space between your numbers and the multiplication symbol. Use the ^ symbol (shift+6) between the base ten and your exponent. For example: 4,538,500,000 = 4.54x10^9 How many days are in 4.25 x 108 seconds?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.