What is the kinetic energy of the ball precisely 4 seconds after it starts falling?

A student is given a sample of a pure, white crystalline substance. Which of the following would be most useful in providing data to determine if the substance is an ionic compound?

What is the easiest science working Model that will satisfy the teacher (any subject - chmestry, physics ...). Make sure to tell me how to make it.

Net Ionic Equation of potassium phosphate (aq) + barium chloride (aq) - ->? a. 2Ba (2+) (aq) + 2PO4 (3-) (aq) - -> Ba3 (PO4) 2 (aq) b. 3K (+) (aq) + PO4 (3-) (aq) - -> K3 (PO4) 2 (s) c. 3BaCl2 (aq) + 2 K3PO4 (aq) - -> Ba3 (PO4) 2 (s) + 6KCl (aq) d.

What mixture can be filtered to remove solute?

Chlorine-35 has 17 protons. How many protons and neutrons does the isotope chlorine-36 have?

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.