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Write the molecular equation for the combination of KNO3 (aq) and BaCl2 (aq). Include states of matter. I wrote 2KNO3 (aq) + BaCl2 (aq) ---> 2KCl (aq) + Ba(NO3)2 (aq) but it says it is wrong. then for the ionic equation for the same combination including the states of matter...2K+ (aq) + 2(NO3)- (aq) + Ba 2+ (aq) + 2Cl- (aq) <----> 2K= (aq) + 2Cl- (aq) + Ba 2+ (aq) + 2(NO3)- (aq) and it says it is wrong as well
Explain the factors that affect rate and relative reactivity. Use a mechanism(s) and reactions to support your claims.
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 265.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid. Also, calculate the normal boiling point for this liquid.
Using the reaction 2C6H6+15O2--->12CO2+6H2O, what volume of carbon dioxide will be produced when 128.0 grams of benzene react.
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg? (Remember to include a "+" or "-" sign as appropriate.)
What is the formula that relates the temperature change obsereved in a substance with the energy released or abosrbed? when you measure a temperature rise during a chemical reaction, is the reaction endothermic or exothermic?
The charges of the ions in an ionic compound affect the strength of the electrostatic attraction holding that compound together. Based on ion charges, rank these ionic compounds by their expected melting points.
the compound L-erythrose 4-phosphate was dissolved in 20 mL of chloroform and the solution was placed in a cell with a 20.0 cm path length, an observed rotation of 100? was found. Calculate the specific rotation, [?]D for L-erythrose 4-phosphate? ..
Of sublimation, recrystallization, distillation, and extraction, which purifications methods should be used to purify the following: a) a crude solid mixture that is 90% pure
A 335 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 628 mmHg. Calculate the moles of Ar present.
The rate of the reaction doubles when the concentration of CH3Cl is doubled and it quadruples when the concentration of H2O is doubled. What is the unit for K?
CCl2F2 can be recycled into a different compound by reaction with hydrogen to produce CH2F2, a compund useful in chemical manufacturing.
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