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3 days ago · Our Reaction Quotient Calculator is designed for simplicity and ease of use. Follow the step-by-step instructions below to quickly calculate the reaction quotient. Enter the concentrations of reactants and products. Specify the stoichiometry of the chemical equation. Click 'Calculate' to obtain the reaction quotient.
4 days ago · The key steps in DNA synthesis include: Initiation: The process begins at specific sites on the DNA molecule called origins of replication. Enzymes called helicases unwind and separate the DNA strands, creating a replication fork. Primer synthesis: Primers, short RNA sequences, are synthesized by an enzyme called primase.
The 𝑦 -axis of an energy level diagram shows the level, or amount, of potential energy stored in a compound. Different substances have a different amount of potential energy. These amounts of energy can be plotted on an energy level diagram or on more complicated graphs called reaction profiles.
5 days ago · When sodium hydride is added to water, it produces hydrogen gas in a highly vigorous reaction. Write a balanced chemical equation for this reaction and identify the conjugate acid–base pairs. Write the expression for \(K_a\) for each reaction.
4 days ago · Chemical Synthesis Database. ChemSynthesis is a freely accessible database of chemicals. This website contains substances with their synthesis references and physical properties such as melting point, boiling point and density.
4 days ago · The cyclodehydration of 1- (o-hydroxyaryl)-1,3-diketones or related intermediates, which can be assisted by strong bases or acids (Vilsmeier-Haack reaction), is a standard method for producing...
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1 day ago · In this paper, novel pyridines 2–8 were designed and synthesized via the one-pot, four-component reaction of 2-formylphenyl 4-tolylsulfonate with malononitrile, ammonium acetate, and phenols or 2-thioxo-1,3-thiazolidin-4-one or 6-aminopyrimidine-2,4(1H,3H)-dione under microwave irradiation in an aqueous solution of water and ethanol (1:1 ratio). The structures of new pyridines 2–8 were ...
