How many neutrons does element X have if tis atomic number is 52 and its mass number is 161? __neutrons

What is the relationship between density and floating or sinking in a fluid

A tank of oxygen has a volume of 1650L. The temperature of the gas inside is 35degrees Celsius. If there are 9750moles of oxygen in the tank what is the pressure in PSI?

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What would you expect to happen to the weight of a dialysis tubing bag containing 0% sugar solution after being placed into a beaker containing 50% sugar solution for one half hour?

What is the pH of a solution of H2SO4 that has [H3O+] = 5.45 * 10-5 M?

7. A 2.0 L container had 0.40 mol of He (g) and 0.60 mol of Ar (g) at 25°C. Which gas has a greater average kinetic energy? Which gas is traveling at a higher average speed? If Ar has an average speed of 431 m/s, what is the average speed of He?

Which of the following will allow more solute to be dissolved in a solvent? Choose all that apply. * Adding more solute Cooling the solution Agitating the solution Adding heat Using larger crystals

Calculate the average bond order for a p-o bond (such as the one shown in blue) in a phosphate ion.

Match the vocabulary terms to their definitions. 1. standard metric unit of length mass 2. a proposed explanation for a scientific problem hypothesis 3. standard unit of volume liter 4. the curved top surface of a liquid column control 5.

The speed at which any planet moves through space is constantly changing. In a perfectly circular orbit, the orbital radius of the planet would be constant and therefore so would be its observed angular velocity.