If the initial volume of water in the graduated cylinder was 25.0 ml before any pennies were added, and the volume of water rises to 28.3 ml after some pennies are added, what was the volume of just the pennies?

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 are isotopes of the same chemical element alike? how are they different?

Which term means two or more atoms that share electrons in a chemical bond? a. hydrogen bond b. moleculec. ionic bondd. element amd you