Riley rubs two rocks together. She notices that some of the surface of one of the rocks was worn away to form small particles. What has happened to that rock?

In this experiment, you will measure mass and volume of various sport balls, both regularly shaped ball and irregularly shaped.

Write out the balanced equation for the reaction that occurs when Al (OH) 3 and H2SO4 react together. You do not need to make your subscripts smaller; just write them out at regular numbers. For example: Al (OH) 3.

Combustion of gasoline in automobiles produces poisonous gases. Catalytic converters that contain solid platinum, palladium, and rhodium change these poisonous gases into harmless gases.

The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?

Honeybee venom is a solution that contains formic acid, which gives the venom an approximate ph of 5.0. which substance is more acidic than honeybee venom?

For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. ΔS° > 0, ΔH° > 0 b. ΔS° > 0, ΔH° < 0 c. ΔS° < 0, ΔH° < 0 d. ΔS° 0 e.

What is a Binary Compound? Is it related to the Ionic and Molecular compounds? if so, how so?

Which answer correctly describes the difference between covalent and ionic bonds? A. ionic: transfer of protons covalent: transfer of electrons B. ionic: transfer of electrons covalent: transfer of protons C.

What are the first five elementsof the periodic table?

Name 3 characteristics that can be used to identify minerals