Why is there a limited number of compounds that can be formed by the elements in the periodic table

How many moles of water are produced from 12.8 moles of oxygen

What type of substance would result from the bonding of elements carbon and chlorine? Select one: a. None of the answer choices b. Ionic c. Metallic d. Covalent

The identity of an element can be determined by observing its emission spectrum. True False

Which of the following electron configurations is correct? a. Sc, 1s22s22p63s23p64d14s2 b. Cl, 1s22s22p63s23p5 c. Ca, 1s22s22p63s23p63d2

For the reaction o (g) + o2 (g) → o3 (g) δh o = - 107.2 kj/mol given that the bond enthalpy in o2 (g) is 498.7 kj/mol, calculate the average bond enthalpy in o3.

Which information in the periodic table indicates the number of protons in an atom? A. the position of the element in its column B. the element's chemical symbol C. the element's atomic mass D. the element's atomic number

What were the expected results of Rutherford's gold foil experiment, based on Thomson's model of the atom? How did the real results of the gold foil experiment change the accepted model of the atom?

How many neutrons are in titanium

What planet has the largest known mountain in the solar system Two Moons and a period of rotation equal to 24.6 hours

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