Science explain Giselle makes a model, using foam balls, to represent
the events in a solar eclipse. To demonstrate this
phenomenon best, the foam ball model should have
which characteristic?

a. The ability of each ball to rotate on its own axis

b. The ability of balls to revolve around each other

C. A source of light within each ball

d.
A different color for each ball

One does not belong why? ice, gold ,wood ,diamond and table salt

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?