Q: As noted above, all of the tiny differences between Coke and Pepsi are easier (though not exactly easy) to notice when you can compare both drinks (rather than tasting one and trying to guess what it is). To stand a better chance of telling Coke and Pepsi apart, have both drinks available and ready to drink so you can try one and then immediately try the other. If you're doing this for entertainment purposes, have a friend blindfold you and scramble the drink containers so you're not sure which is which. If you're training to be able to tell the drinks apart in the future, feel free to leave the blindfold off. Your first action should be to take only a small sip of each soda. While everyone's sense of taste will differ, this test isn't quite as random as you may think. See below: Statistically, more people tend to prefer the taste of Pepsi after just one sip. Its sharper, sweeter taste makes it create a stronger impression. It can even caused increased stimulation in the part of the brain responsible for judging flavors. Now, continue to drink both sodas until you run out or you start to feel full. Take note of which soda you were more comfortable drinking a large amount of. If your preference switched (that is, you preferred one soda for the sip test but the other once you drank more of each), you're like most people. See below: Statistically, more people tend to prefer Coke when drinking an entire can or more. Its smoother, less sweet flavor makes it easier to drink large quantities of it. Thus, if you liked one soda better after just a sip but liked the other one better once you drank more, the first one was probably Pepsi and the second was probably Coke.
A: Have both sodas for comparison purposes. See which you prefer after a sip test. See which you prefer after drinking as much as you want.

Q: Note that each shell lies further and further out from the nucleus of the atom. According to the property of entropy, energy always seeks the lowest possible state of order. The electrons will seek to populate the lowest orbital shells available. When two atoms come together to form a molecule, they seek to use each other's electrons to fill the lowest possible states in the electron orbital shells. Bonding electrons are, essentially the electrons that stick together and fall into the lowest states. Antibonding electrons are the "free" or unbonded electrons that are pushed to higher orbital states. Bonding electrons: By noting how full the orbital shells of each atom are, you can determine how many of the electrons in higher energy states will be able to fill the more stable, lower-energy-state shells of the corresponding atom. These "filling electrons" are referred to as bonding electrons. Antibonding electrons: When the two atoms try to form a molecule by sharing electrons, some electrons will actually be driven to higher-energy-state orbital shells as the lower-energy-state orbital shells are filled up. These electrons are referred to as antibonding electrons.
A: Consult a diagram of electron orbital shells. Know the difference between bonding and antibonding orbitals.

Q: If your dog is aggressive or even if he bites for no apparent reason, you must get immediate control of him. Use a harness, muzzle, or head halter to prevent him from further biting. Don't let your dog go outside the house without being on a leash and unless he's accompanied by a responsible adult holding the handle. You should never leave a dog that bites alone with children. In fact, your dog shouldn't be around children outside the immediate household until his biting is stopped. Once you've gotten control of your dog, you need to take him to the vet for an exam and behavioral consultation. Your vet may find that the dog is suffering from a medical condition (like brain dysfunction from stroke or old age) or is in pain (from arthritis or an injury). If your vet determines a cause for the grumpiness and biting, treatment may be recommended that can stop the biting. If there's no medical explanation for the biting, ask your veterinarian to determine if the dog may be acting out of fear or because he's defending his belongings. Your vet may be able to recommend an animal behavioral specialist. The specialist can work with your dog to make sure he's properly trained. Working with a professional trainer is especially important if there was a human injury involved, since you most likely will not be able to correct the biting behavior on your own. Make sure the professional you work with has been certified to work with aggressive animals. Look for a Certified Applied Animal Behaviorist (CAAB or ACAAB), a veterinary behaviorist (Dip ACVB) or a Certified Professional Dog Trainer (CPDT) in your area.
A:
Control and supervise your dog. Get your dog checked by the veterinarian. Find a professional trainer for your dog.