To draw a Lewis structure for a covalent compound, being by calculating A, the available electrons, and N, the needed electrons. What is A for silicon tetrachloride, SiCl4?

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

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.