Sodium chloride is composed of molecules that are stable when dry. in the presence of water, however, the atoms that compose the molecules separate from each other. what type of chemical bond holds the dry substance together?

Finding the pH for [H+] = 9.4 * 10-3 M?

How many milliliters of solution of 2.15 M K2SO4 must be used to make 63 mL of a solution that has a concentration of 0.188 M K2SO4?

Explain how mountain chains provide evidence to support the theory of continental drift.

What is a periodic element that was named after Einstein?

The nucleus of an atom is

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag

If a color change occurs when two solutions are mixed has a chemical reaction likely occurred?

Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca (OH) 2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) CaO (s) + 2HCl (aq) →CaCl2 (aq) + H2O (l), ΔH = - 186kJ CaO (s) + H2O (l) →Ca (OH) 2 (aq), ΔH =

1. Calculate the end velocity of a rocket that traveled 16km in 2 seconds. distance time 2. Calculate the rockets acceleration m with a start velocity of 0m/s and the end velocity from #1 for 10 seconds.

How are linear and nonlinear graphs alike