7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's core and crust?

1) The mantle is less dense than the core but more dense than the crust.

2) The mantle is less dense than both the core and the crust.

3) The mantle is more dense than the core but less dense than the crust.

4) The mantle is more dense than both the core and the crust.

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

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.