To draw a lewis structure for a
covalent compound, begin by
calculating a, the available
electrons, and n, the needed
electrons.
what is n for silicon
tetrachloride, sicl4?
enter

first one is the correct answer

14 days is the half-life of phosphorus-32

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".