Finding the density of a regular shaped object:This diagram represents a solid object with a mass of 120 grams. The volume is 20 cm by 25 cm by 5 cm? What is the density of the object?

Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

How does a hydroelectric power plant converts energy into energy.