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How do substances have different physical and chemical properties than their component elements?
Copper II sulfate dissolveds in water to form a blue solution. What species are present in solution, i.e., what is actually swimming around in solution? write the formulas.
While 14 g of baking soda (NaHCO3) is added to 550.0 mL of vinegar (an aqueous solution of CH3COOH at 5% concentration by mass), the vinegar neutralizes the baking soda as well as converts it to CO2 gas
Draw the major organic product formed by reaction of 3-hexyne with the following reagent: Cl2 (1mol)
Write a complete mechanism of reaction of 2,4-dinitrophenylhydrazine with cyclohexanone. (show electron lone pairs and formal charges and show electron flow using curved arrows)
a 5.00 g sample of a large biomolecule was dissolved in 13.0 g of carbon tetrachloride. the boiling point of this
Calculate a lattice energy for (in kilojoules per mole) using the following information.
Write the molecular and net ionic equations for the reaction in aqueous solution of sodium sulfide and sulfuric acid. Explain why the reaction goes to completion.
Give a detailed description of the mechanism by the lagging strand of the double strand DNA duplex is synthesised and point out the role of all the enzymes that are involved
A typical automobile gets 30 miles per gallon of gas and drives 12,000 miles every year. Assuming that octane (C8H18, density 0.7025 g cm-3) is a principal component of gasoline
What is the reduction half-reaction for the following overall cell reaction? Pb 2+(aq) + 2 Ag(s) ? Pb(s) + 2 Ag+(aq) Choose one: Pb 2+(aq) + 2 e- ? Pb(s) Ag(s) + e- ? Ag+(aq) Pb 2+(aq) + e- ? Pb(s) Ag+(aq) + e- ? Ag(s)
A 158-mg sample of Na2CO3 is dissolved in H2O to give 3.00L of solution. What is the concentration of Na+ in parts per million (ppm)?
the density of a particular brand of gasoline at room temperature is .70gml. if the gas tank of a car holds 10.0
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