Element that has two isotopes has an average atomic mass of 199.7. if 75.56% of the atoms of the element have an atomic mass of 197.4, what is the atomic mass of the other isotope?

Is a polar molecule an ionic or covalent compound?

What group of elements on the periodic table are already chemically stable?

Which can form a double covalent bond? Cl H N Ca C O

What is the definition of a Lewis acid? o a substance that accepts electrons to form a covalent bond O a substance that donates electrons to form a covalent bond a substance that accepts a proton O a substance that donates a proton

Amount of liquid measured in L or Lm

An organic compound is one that contains the element carbon. true or false

Most thermal energy in the atmosphere is transferred by what

Identify water. weak electrolyte, weak acid nonelectrolyte strong electrolyte, strong acid weak electrolyte, strong acid strong electrolyte, weak acid

What is the atomic weight of a hypothetical element consisting of two isotopes, one with a mass of 62.2 u which is 24% abundant, and the other with a mass of 64.0 u?

A pure compound contains 24 g C, 4 g H, and 32 g O. If no other elements are present, determine the empirical formula of the compound. Be sure to show your work.