Which subatomic particle has the least mass?

electron

proton

neutron

nucleus

Which of the following statements will decrease the amount of work the system could perform? (a) Add to the solution (b) Add solid NaOH to the reaction (assume no volume change) (c) Increase the concentration of the (d) Selectively remove (e) Add to

A student used 10mL water instead of 30mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted?

A sample of pure water has a hydronium concentration of 1.0 * 10-7 M. What is the pH of the water?

You can increase the surface area of a block of ice by A. melting it B. putting it in the freezer C. crushing it D. adding salt to it

Is peeling an orange a chemical reaction?

At standard pressure, during which physical change does the potential energy decrease?

How are inner and outer planets different?

What process do body cells use to divide

Recall the postulates of kinetic molecular theory read the list and check all the statements that apply to behavior of an ideal gas

Which property would cesium most likely have? It is hard. It is ductile. It is a gas. It has low reactivity.