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Table salt and sugar are accidentally mixed A 4.90g sample is burned and 2.20-g of CO2 is produced. What is the mass percentage of salt in the mixture?
An 0.758 mol sample of neon gas at a temperature of 18.0 oC is found to occupy a volume of 24.0 liters. The pressure of this gas sample is. answer in mm Hg please.
How many moles of chlorine molecules correspond to 7.40 x 1026 molecules of Cl2?
What is the equilibrium constant Kc of this reaction? Use an ICE table with numbers.
A tank of hydrogen has a volume of 22.9 L and holds 14.0 mol at 12.0 C, what is the pressure of the gas in atm
You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample.
For the reaction Fe(OH)2(s)+H2O2(aq) -> Fe(OH)3(s), the reduction reaction is H2O2 -> 3OH-. The book states that the O2 from the H2O2 has a -1 charge and the OH from the Fe(OH)3 is -2.
The enthalpy change for any reaction can be obtained by subtracting the sum of the enthalpy changes of formation of the reactants from the sum of the enthalpy changes of formation of the products.
identify and discuss 3 key features associated with the combustion of polymeric materials or compounds that are relevant to the safety and health of an EHS
The minerals chalcocite (Cu2S) and malachite (Cu2CO3(OH)2) are two primary sources of copper. What is the oxidation state of copper in each of these minerals?
A certain quantity of gas occupies 61.3 mL at 68C. If the pressure remains constant, what would be the volume of the gas at 128C?
Explain the relationship between the electron configuration and the corresponding principal and angular momentum quantum numbers for each of your elements.
calculate the mass of Cl2 consumed if the battery delivers a constant current of 853 A for 28.0 min.
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