What is the mass of 6.80 moles H2O

H = 1.008 amu O = 15.999 amu

When a metal bonds with a nonmetal, the bond that is formed is a (n) ___. ionic bond covalent bond chemical bond metallic bond

Explain Mendeleev's law about the Mendeleev table.

The table below shows some physical properties of two unknown samples. Physical Properties Sample Mass Solubility (in water) C 200 g 36 g/mL D 500 g 180 g/mL What would best support whether the two samples are of the same substance or not?

If you have 8.29 moles of O2 how many moles of H2O can be produced?

Why is subatomic particles not made up of atoms

Hydrogen sulfide gas and sulfur dioxide gas react to form solid sulfur and water. If 10.0g of gaseous hydrogen sulphide is mixed with 10.0g of gaseous sulfur dioxide, how many grams of solid sulfur can form?

Describe the contributions of the following scientists to our knowledge of atomic structure: J. J. Thomson, R. A. Millikan, Ernest Rutherford, and James Chadwick

If you have 400 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days?

As an electron gains energy, it becomes excited and jumps to a lower energy level?

If 3.011 x 1023 molecules have a mass of 20.04 grams, what is the molar mass of this substance?