Identify the spectator ions in the reaction Ca(NO3)2 + 2NaCl(aq) â†’ CaCl2(aq) + 2NaNO3(aq)
b. Ca+2, NO3–
c. Na+, Cl–
d. Ca+2, Cl–
e. Na+, Cl–, Ca+2, NO3–
What is the oxidation number of N in NH4+
What are the spectator ions in the reaction HF(aq) + NaOH(aq) â†’ NaF(aq) + H2O(l)
a. H+, F–
b. Na+, OH–
c. Na+, F–
d. Na+ alone
e. H+, OH–
What is the oxidation number of S in S2O3-2?
Identify the oxidizing agent in the reaction: Cl2 + 2Br– â†’ 2Cl– + Br2
What is the molarity of the solution formed by dissolving 10.0g of Ca(NO3)2 in 250 mL aqueous solution?
Consider the reaction H2SO4(aq) + 2NaOH(aq) â†’ 2H2O(l) +Na2SO4(aq). If 25 mL of H2SO4 was needed to react with 15 mL of 0.20 M NaOH, what is the molarity of the H2SO4(aq)?
Which of the following is a weak electrolyte?
Identify the reducing agent in the reaction Ca + 2H+â†’ Ca+2 + H2
Chromium is less active than Manganese but more active than Cobalt. Which of the following reactions will occur?
a. Co + Cr+3 â†’ Co+2 + Cr
b. Mn + Cr+3 â†’ Mn+2 + Cr
c. Co+2 + Cr+3 â†’ Co+ Cr
d. Co + Cr â†’ Co+2 + Cr+3
e. Mn + Cr â†’ Mn+2 + Cr+3
Which of the following is a strong electrolyte?
d. All of them are
e. None of them are
Identify the spectator ions in the reaction: Ca(NO3)2(aq) + Na2CO3(aq)â†’CaCO3(s) + 2NaNO3(aq)
a. Na+, NO3–
b. Ca+2, CO3-2
c. Ca+2, NO3–
d. All are
e. Na+, CO3-2
Which of the following is a nonelectrolyte
Consider the reaction Mg(OH)2(s) + 2HCl(aq) â†’ MgCl2(aq) +2H2O(l). What is the mass of Mg(OH)2(s) needed to react with 25 ml of 0.20 M HCl(aq)?
What is the coefficient of H2O when the following reaction is balanced: Al(OH)3(s) + H2SO4(aq) â†’Al2(SO4)3(s) +H2O(l)
Which of the following will dissociate completely in dilute aqueous solutions?
Complete & Balance the following Reaction: Fe(NO3)3(aq) + Na2S(aq) â†’ ? + ?
In which of the following is the oxidation number of the Cl +1?
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