A reasonable and educated guess based on what you know and observe is called a

How many grams of diphosphorus pentoxide result if 100.0 g of phosphorus are combined with sufficient oxygen?

Compare the electron-dot formulas of CH4 and H2O. Why do these molecules have approximately the same bond angles but different molecular shape?

copper has a density of 8.92 g/cm^3. a sample of copper occupies a volume of 25.8 mL. what is the mass of this sample of copper in milligrams?

If the theoretical yield is 26.0 grams and you actually recovered 22.0 grams what is the percent yield

You dissolved the 19 g of sugar in 50 mL (0.050 kg) of distilled water. Calculate the molarity of the solution you mixed in?

Would the two as yet undiscovered elements A+1 and D+2 react?

Ammonium perchlorate is a powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen gas, chlorine gas, oxygen gas and water vapor, releasing a great deal of energy.

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SeCl2.

The same amount of energy is required to remove each electron sequentially from an atom. A. TrueB. False

Crude oil may contain hundreds of different types of hydrocarbons. Some examples include: Butane (C4H10) Dodecane (C12H26) Octane (C8H18) Benzene (C6H6) Many common fuels, such as gasoline and kerosene, are combinations of these substances or others.