How many neutrons does element x have it it's atomic number is 20 and it's mass is 88?

Describe the properties of sodium, chlorine, and sodium chloride

John rides his motorcycle with a constant speed of 52 miles per hour. How long will he take to travel a distance of 156 miles?

A sucrose solution is prepared to a final concentration of 0.210 MM. Convert this value into terms of g/Lg/L, molality, and mass %%. (Use the following values: molecular weight MWsucroseMWsucrose = 342.296 g/molg/mol; density rhosol′nrhosol′n = 1.

How many milliliters of 5.50 m hcl (aq) are required to react with 9.55 g of zn (s) ?

Which quantities must be equal for a chemical reaction at equilibrium? (1) the activation energies of the forward and reverse reactions (2) the rates of the forward and reverse reactions (3) the concentrations of the reactants and products (4) the

What would happen if you tried to sqeeze a gas into a smaller container?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat