03:32The strengths and weaknesses of acids and bases - George Zaidan and Charles MortonTED-Ed739views
Multiple ChoiceWhich of the following reactions is most consistent with that of a base?2024views39rank
Multiple ChoiceThe addition of an acid like HCl to an aqueous solution (pure water) would result in:1941views33rank
Multiple ChoiceWhy is the increasing amount of carbon dioxide being taken up by the oceans a cause for concern? 1173views2rank
Textbook QuestionConsider the reaction between carbon dioxide and water to form carbonic acid: CO2(g)+H2O(l)⇌CH2O3(aq) In the ocean, carbonic acid immediately dissociates to form a proton and bicarbonate ion, as follows: CH2O3(aq)+H+(aq)⇌CHO3−(aq) If an underwater volcano bubbled additional CO2 into the ocean, would this sequence of reactions be driven to the left or the right? How would this affect the pH of the ocean?898views
Textbook QuestionWhen H2 and CO2 react, acetic acid can be formed spontaneously while the production of formaldehyde requires an input of energy. Which of these conclusions can be drawn from this observation? a. More heat is released when formaldehyde is produced compared to the production of acetic acid. b.Compared to the reactants that it is formed from, formaldehyde has more potential energy than does acetic acid. c. Entropy decreases when acetic acid is produced and increases when formaldehyde is produced. d. Only acetic acid could be produced under conditions that existed in early Earth.737views
Textbook QuestionWhich of the following is not a property of water?a. Water has a high heat capacity.b. Water doesn't take heat with it when it evaporates.c. Water is a polar solvent in which many solutes will dissolve.d. Water serves as a cushion and lubricant in the body.330views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.a .Acids dissociate in water to give hydrogen ions and an anion.257views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.c .A buffer is a system of chemicals that resists a change in pH249views
Textbook QuestionMark the following statements as true or false. If a statement is false, correct it to make a true statement.d. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.227views
Textbook QuestionA salt is:a. a metal cation bonded to a nonmetal anion.b. a hydrogen ion donor.c. an electrolyte that conducts electricity in water.d. Both a and c are correct.e. Both b and c are correct.201views
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