What is the atomic number of a sodium atom that has 11 protons and 12 neutrons?

Describe in detail what happens when the following are dissolved in water polar solute ch3oh vs nonpolar solute ch3 (ch2) 4ch3 KF vs CO2

Two changes are described below. Ice melts to form water. Sugar cubes dissolve in hot coffee. Which statement is true about the two changes? Both are chemical changes because there is a change in the composition of ice and sugar.

What is the initial rate when the initial concentrations of both reactants are 0.16M? The initial rates listed in the following table were determined for the reaction 2NO (g) + Cl2 (g) →2NOCl (g) Experiment Initial [NO] Initial [Cl2] Cl2 consumption

What trend in atomic radius do u see as you go a group family on the periodic table?

A chef is serving a lunch special with 1 sandwich and 2 corn cobs per plate. If there are 5 sandwiches and 14 corn cobs, what is the theoretical yield? A. 2plates B. 4plates C. 5plates D. 7plates

What valley could be younger

When the atoms of two substances joined to make a new substance the process is called?

How many milliliters of hydrogen gas are produced by the reaction 0.020 mol of magnesium with excess of hydrochloric acid at STP?

Why is water considered a pure substance and not a mixture?

Explain the term "parallax effect"