How many electrons do you need to match the weight of a proton

A wooden cylinder 30.0 cm high floats vertically in a tub of water (density = 1:00g/cm3). The Top of the cylinder is 13.5cm above the surface of the liquid. What is the density of the wood?

Squeezing a balloon is one way to burst it why

Select the definition of diffusion. The gradual dispersal of one substance through another substance. The movement of a gas particle from one area to another. The escape of a gas through a small opening in a barrier into a region of lower pressure.

Use the periodic table to identify each of the following bonds as polar or nonpolar. C-Cl polar nonpolar

Write the ka expression for an aqueous solution of hypochlorous acid:

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?

Which element has atoms that can form single, double, and triplecovalent bonds with other atoms of the same element? (1) hydrogen (3) fluorine (2) oxygen (4) carbon

Which of the following statements best describes the basic structure of an atom? Electrons and protons are in motion around a nucleus that contains neutrons Neutrons are in motion around a nucleus that contains protons and electrons Protons are in