Varul nestins se obtine prin descompunerea termica a calcarului. Calculati masa de calcar de puritate 90% necesara obtinerii a 1120 kg de var nestins , masa de var stins care se obtine din oxidul de calciu

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.

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Ajar contains a certain substance. which observation would show that the substance must be either a solid or a liquid?