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A) What are the advantages and disadvantages of writing a chemical equation with chemical symbols and formulas instead of just words?
B) On your own words summarize to another person the steps needed to successfully write a balanced chemical equation.
C) Describe the basic part of a chemical equation. Identify how the physical state of elements and compounds is identified in an equation.
What is the molecular weight of a gas if a 31.0 g sample has a pressure of 836 mm Hg at 25.0°C in a 2.00 L flask? (R= 0.0821 L atm/mol K)
some amount of potassium dichromatenbsp k2cro7 thatnbsp is 2.335 g isnbsp dissolved in enough h2o to prepare a
4-methoxybenzoic acid is a weaker acid than benzoic acid, but methoxyacetic acid is a stronger acid than acetic acid. Explain this apparent contradiction.
Explain how many Calories are needed to increase the temperature of 10.0 grams of ice from 29.6 C to -19.6. Specific heat of ice is 0.48 cal/g C
Problem- What is the concentration of Flouride ions (in M) in a 5.09 M solution of (CoF3) cobolt (iii) fluoride
What is the final temperature inside the vessel after combustion, assuming that the steel vessel has a mass of 12.205kg, the mixture of gases has an average molar heat capacity of 21J/(mol??C), and the heat capacity of steel is 0.499J/(g??C)?
Is it true that Ksp is an equilibrium constant that can be used to express quantitatively the extent to which a compound dissolves
how many grams of NH3 will be produced? Which reactant remains in excess, and in what mass?
Hypohalic acid, HOX, is a weak acid with a Ka of 3.341x10-8. What is the pKb for the hypohalite anion, OX-, in a 0.8865 M solution of KOX
Consider the data below representing a run for the Clock Reaction. If the volumes of reagents indicated were combined and 219 seconds elapse before the color appears, calculate the rate of reaction in M/s.
What is the initail pH of this solution of hypobromous acid. What is the pH of the solution at the equivalence point
The concentration of NaCl in solution is 0.25 M. What volume of solution contains 5.0 g NaCl. A. 1.4 L B. 73 mL C. 340 mL D. 2.9 L
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