A block of ice has a weight of 35

g. if the block of ice is broken into three pieces, what is the weight of the three pieces combined?

In the reaction A + B → AB, which of the following will not increase the rate? (A) increasing the temperature (B) adding B (C) adding A (D) adding a catalyst (E) decreasing the temperature

A 25.00 ml sample of h3po4 solution is neutralized by exactly 54.93 ml of 0.04345 m ca (oh) 2. what is the molarity of the h3po4 solution?

A new non-electrolyte molecule is discovered. When 241 mg of the molecule is dissolved in 250.0 mL of water, it has an osmotic pressure of 0.072 atm at 25 oC. What is the molar mass of the molecule

A reaction will be spontaneous only at low temperatures if both ΔH and ΔS are negative. For a reaction in which ΔH = - 320.1 kJ/mol and ΔS = - 86.00 J/K · mol. Determine the temperature (in °C) below which the reaction is spontaneous.

What is the ratio of acetate ion to acetic acid (Ka = 1.76*10-5) in a solution containing these compounds at pH 4.38? Write your answer as a decimal and not as a fraction.

What happens to the charges when an ionic compound forms

We dissolve 93 grams of sodium sulfate (Na2SO4) in 20 grams of water. What is the percent by mass of sodium sulfate in this solution? Answer in units of %.

The modern atomic model includes electrons orbiting the nucleus. which of the following parts of dalton's atomic model was disproved by the discovery of the electron? - atoms are tiny particles. - atoms cannot be divided into smaller parts.

tandard reduction potentials are 1.455 V for the PbO2 (s) / Pb (s) couple, 1.82 V for Co3 (aq) / Co2 (aq), 3.06 V for F2 (g) / HF (aq), 1.07 V for Br2 (l) / Br - (aq), and 1.77 V for H2O2 (aq) / H2O (l).

Which of the compounds listed below is more acidic than 1-butanol?