What can we tell from the column that an element is in?

The year the element was discovered

The number of protons in the nucleus

The number of electrons in the outer energy level

The mass of the atom

What is the formula of Potassium decahydrate?

At 1000 K, a sample of pure NO2 gas decomposes. 2 NO2 (g) equilibrium reaction arrow 2 NO (g) + O2 (g) The equilibrium constant KP is 158. Analysis shows that the partial pressure of O2 is 0.99 atm at equilibrium.

Chemical synthesis of drugs allowed development of cancer treatments that save lives. yes or no

Use unit conversion to calculate the number of minutes in one week.

A syringe contains 56.05 mL of gas at 315.1 K. What volume will that gas occupy if the temperature is increased to 380.5 K? a) 12.41 b) 46.42 c) 67.68 d) 81.74

A board measures 212 inches. How many feet is this?

Is neutralizing a base a chemical property

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