An atom:

1) is the smallest whole unit of matter

2) can form one or more elements

3) is the smallest whole unit of matter with the properties of a specific element

4) all of the above

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?

Can someone who expert in chemistry be my personal tutor? I'm so desperate

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.