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briefly how are covalent compounds formed what is the basic difference distinguishing single double and triple bonds
state the octet rule what common element is an exception to this rule and why in a lewis symbol what determines the
what are valence electrons and how are they used in the formation of compounds how is the number of valence electrons
lavoisier named a new element oxygen and tried to take credit for its discovery who actually discovered the element and
state the law of conservation of mass and give an example who discovered the law of definite proportions state the law
give four reasons why lavoisier is generally designated the father of chemistry when a sample of a reacts with one of b
refer to exercise 10 how much phosphorus tribromide would be formed if 1000 g of phosphorus reacted with 5993 g of
in a lab experiment 775 g of phosphorus reacts with bromine to form 6768 g of phosphorus tribromidea calculate the
an antacid tablet weighing 0942 g contained calcium carbonate as the active ingredient in addition to an inert binder
volcanoes emit much hydrogen sulfide gas h2s which reacts with the oxygen in the air to form water and sulfur dioxide
you are the supervisor in a car assembly plant where each car produced requires one body and four wheels you discover
you decide to have hot dogs for dinner in the grocery store you find that buns come only in packages of 12 whereas the
draw the lewis structure for formaldehyde h2co a compound whose odor is known to most biology students because of its
what is absorbed during bond breaking but liberated during bond formation name the two products of the complete
a what term applies to the substances at point ab what term applies to the substances at point bc what term applies to
a collision between two molecules that have the potential to react may or may not result in a reaction explain list the
iodine is aa blue-blackb crystallinec solid itd sublimes to a violet-colored gas ande reacts with aluminum and many
name the reactants products and catalyst for photosynthesis what is the source of the necessary energy what are some
a nitrogen and hydrogen react to give ammonia in a combination reaction write and balance the equationb electrolysis
what is meant by the molarity of a solution why are sticks rather than logs used to start a firewhy is an open box of
why are the metals gold and silver found as elements in nature whereas the metals sodium and magnesium are found in
use the letters a b and c to illustrate the general format of a single-replacement reaction metals above hydrogen in
describe what is seen in a precipitation reaction what is happening on the atomic level to cause what is observed
the reaction of an acid with a carbonate or hydrogen carbonate gives what three products use the letters a b c and d to
what are the chemical differences between saturated and unsaturated fats what are the physical differences between them