Feb 6, 2016 · When choosing one object, this simplifies nicely. ( (n), (1)) = (n!)/ (1! (n-1)!) = (n!)/ ( (n-1)!) = n (note that this is intuitively obvious, as there are clearly only n choices when …

You should probably go through each type of intermolecular force, and see if it is there. The order of precedence for each type of intermolecular force is: hydrogen bond permanent dipole-dipole …

This is an interesting and almost philosophical question. (I was hoping someone else would try to answer it first). With the qualification that different environments may have their own standards …

Cross breeding is different types of a certain species, hybrid is a mix of species. Cross breeding is common such as the use in dogs as different types (breed) are reproduced to have a dog with …

Progressive or travelling waves come in two types, called longitudinal and transverse that move like worms and snakes respectively. This means that in longitudinal waves the particles are …

An individual with o negative blood group can donate blood to all types of blood groups. They are known as universal donors

The Archaeopteryx is from the Upper Jurassic estimated to be 150 million years ago. The Archaeopteryx is not ancestral of any group of modern birds. (Larry Martin. The relationship of …

There are mainly 2 types of cell divisions that actually exist-meiosis and mitosis. The reasons why cells divide can be for numerous purposes- As seen from the perspective of mitotic division, in …

Sep 29, 2014 · There are three types of binary compounds: Type I, a metal of fixed charge and a nonmetal Type II, a metal of variable charge and a nonmetal Type III, two non-metals Type II …

These differences are needed for different bond types Non-Polar Covalent less than 0.5 Polar Covalent between 0.5 and 2.1 Ionic greater than 2.1 Answer link