Is hammering wood together a physical or chemical change?

Calculate the number of atoms per unit cell in each type of cubic unit cell. Enter three integers separated by commas (e. g., 1,2,3) in the following order: primitive cubic, body-centered cubic, and face-centered cubic.

Explain how dipole interactions and dispersion forces are related. first, explain what produces the attractions between polar molecules. then, explain what produces dispersion forces between molecules. which intermolecular force is stronger?

Elements that are gases at room temperature are likely to be classified as which of the following

Which of the following is not a pure substance

Suppose you are trying to find the volume of a box based on the following measurements for the length, width, and height of the box, where the height was measured in two parts. length, l = 2.2 in width, w = 3.5 in height, h = 10.

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.

Which can associate a suspect and the firing of a gun? (its not b) A) markings on the gun's exterior B) markings on the casing C) markings on the bullet D) powder residues