The atomic mass of carbon-13 is 13. It has six protons. How many neutrons does this isotope have? 6 7 13 19

Which of the following is NOT an example of an insulator? wood plastic glass aluminum foil

If 8.0 g of NH4HS (s) is placed in a sealed vessel with a volume of 1.0 L and heated to 200 ∘C the reaction NH4HS (s) ⇌ NH3 (g) + H2S (g) will occur. When the system comes to equilibrium, some NH4HS (s) is still present.

Because the moon rotates once for each revolution around Earth,

When may a hypothesis be revised?

Why does C-14 decay but not N-14?

Polarity of a molecule depends on the polarity of individual bonds in that molecule. a. True b. False

What causes dipole interactions

What do holes in volcanic rock illustrate about the conditions in which

Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in the cylinder. Which property of the nail can be determined by the change in height of the water?

Por que un solido mantiene su forma?