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Which of the following ions has a higher concentration in Sea water on average, according to your lab manual?
A. Ca2+
B. Mg2+
C. Na+
D. K+
Step by step
Solved in 1 steps
- 9. Which ion is the only negative ion produced by an Arbenius. base in water? A NO, C. OH D. HWhich of the following ions is most likely to form a soluble sulfate? Select one: a. Pb2+Pb2+ b. Na+Na+ c. S2–S2– d. Cl−Cl− e. Ba2+32. Magnesium hydroxide is used in many antacid medicines. This is due to all of the reasons below except a. since it is a base, it will neutralize acid b. it does not dissociate well, which means excess medicine is less harmful c. it can accept two protons per formula unit d. being a strong base makes it ideal for neutralizing HCl
- Which of the following statements about different salts is TRUE? Select one: O a. An aqueous solution of NaBr would be basic. O b. KCOOH will form a neutral solution upon dissolution in water. O c. Na,S will form a basic solution upon dissolution in water. O d. NH4NO3 is formed from the reaction of a weak acid and a strong base.Potassium is a very reactive metal, but in compounds it is present as the potassium ion and is not very reactive. For example, dry potassium bicarbonate powder can be used to extinguish burning liquids. Why is there such a difference in the reactivity of potassium metal and the potassium ion? A. The potassium in the bicarbonate salt is a base, but the potassium metal is an acid. B. The potassium in the bicarbonate salt is an acid, but the potassium metal is a base. C. The combustion of the liquids suppresses the potassium's ability to react. D. The potassium metal can readily ionize by losing its one valence electron; the potassium in the bicarbonate salt is already ionized. E. The potassium atom is bonded to an oxygen atom in the bicarbonate salt, but in the metal it is unbound and free to react.66. Write the formulas and names of the acids that are derived from adding enough H+ ions to the following ions to neutralize their charge. a. SO42- b. C2H3O2-
- Which of the following shows the balanced complete neutralization reaction between KOH and H,SO.? a. KOH+HSO4 H2O + KSO4 b. 2 KOH + H2SO4 2 H2O + K2SO4 c. 3 KOH + H2SO4 3 H20 + K3SO4 d. KOH +HSO4 → H2O + KSO4 59 PM or Previous Page, all to the Next P Ovi 10:30O Vhen you na connect41. What volume of 0.110 M H2SO4 is required to exactly neutralize 10.0 mL of 0.085 M NaOH? а. 0.19 mL b. 7.7 mL c. 0.39 mL d. 3.9 mL е. 1.9 mL CS Scanned with CamScannerWhat best sums up Le Chatelier's principle is A. According to this, a system in balance tends to change in a way that releases tension while under stress. B. Le Chatelier's principle can be applied in several situations, such as when you blow air through a straw or dissolve an alka-seltzer pill in a glass of water. C. explains how acids are created and destroyed, and how anything can operate to raise the concentration. D. All of the above
- 46. What is the concentration of Na,SO, in a solution if the concentration of Nat ions is 0.35 M? A. 0.35 M В. 0.18 M С. 0.12 M D. 1.1 M Е. 0.70 M1. How would the mole ratio of NaHCO3 and HCl would be affected if the following occurred.a. The student didn’t test for water vapor after the initial heating.b. During the experiment, the beaker used to hold the test tube was broken and a new beaker was used.c. The student didn’t wait between drops of hydrochloric acid until the reaction stopped.d. The student didn’t wait to confirm the reaction was complete before starting the heating steps.Indicate whether each statement is true or false. if you think the statement is false, rewrite it to make it true. a. a catalyst makes a reaction go slower b. in a single displacement reaction, one element replaces another in a compound. c. a precipitation reaction always has an acid and a base a reactants. d. a neutralization reaction results in a solution that has a higher pH than the pH of the reactant solutions. e. a colour change is usually evidence that a chemical reaction has occurred.