The reaction of nitric acid with calcium carbonate produces calcium nitrate, carbon dioxide, and water. Determine the correct balanced equation for this reaction.   Question 1 options:   2HNO3(aq) + CaCO3(s) → CaNO3(aq) + CO2(g) + H2O(l)   HNO3(aq) + CaCO3(s) → Ca(NO3)2(aq) + CO2(g) + H2O(l)   2HNO3(aq) + CaCO3(s) → Ca(NO3)2(aq) + CO2(g) + H2O(l)   2HNO3(aq) + 2CaCO3(s) → 2Ca(NO3)2(aq) + 2CO2(g) + 2H2O(l)   HNO3(aq) + CaCO3(s) → CaNO3(aq) + CO2(g) + H2O(l)   Question 2    A compound contains only nitrogen and oxygen. Determine the empirical formula of the compound if a sample is found to contain 46.67 % nitrogen by mass.   Question 2 options:   N22   N2O5   N   NO   N2O   Question 3 Determine the moles of CaCO3 in 275 g of CaCO3.   Question 3 options:   0.364   4.57 × 10–22   2.75   275   none of these are reasonable

A chemist wishes to precipitate iron ions out of a solution of iron (III) nitrate.  Complete balanced equation, total ionic equation and a net ionic equation have been provided. Identify a spectator ion. Complete Balanced Chemical Equation  Fe (NO3)3 (aq) + 3 NaOH (aq)  -->   Fe (OH)3 (s) + 3 NaNO3 (aq) Total Ionic Equation  Fe3+ (aq) + 3 NO3- (aq) + 3Na+ (aq) + 3 OH- (aq) -->  Fe (OH)3 (s) + 3 Na+ (aq) + 3 NO3- (aq) Net Ionic Equation  Fe3+ (aq) + 3 OH- (aq)  -->   Fe (OH)3 (s)     Identify a spectator ion:

Balance the following chemical equation  Mg(OH)2(s) + HCl(aq) - H2O(l) + MgCl2(aq)

The following equation is unbalanced. Create an atom inventory, then balance the equation. AgI + Fe2(CO3)3 → Fel3 + Ag,CO3

For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. reaction 2 Cro¯(aq) +2 H₂O+ (aq) → Cr‍₂O²˜¯(aq)+3 H₂O(1) 2 H2(g)+O2(g) → 2 H₂O(g) NH3(aq)+2 O2(g) → HNO3(aq)+H2O(l) N2(g)+3 H₂(g) → 2 NH3(g) highlighted atom is being... oxidized reduced neither oxidized nor reduced

n the following reaction, when the equation is correctly balanced, what is the correct coefficient for sodium chloride? Pb(NO 3) 2( aq) + NaCl( aq) → PbCl 2 ( s) + NaNO 3( aq)     1     2     3     4     5

Write balanced complete ionic equation for the following reaction.   2K3PO4(aq)+3CaCl2(aq)→Ca3(PO4)2(s)+6KCl(aq)

Which of the following is a correct molecular equation for the reaction of a metal and an acid? K (s) + H3PO4 (aq) → KH3P (s) + 2 O2 (g) ○ Al (s) + H2SO4 (aq) → AIH₂ (aq) + SO4 (g) 2 Li (s) + 2 H+ (aq) → 2 Li+ (aq) + H2 (g) Ca (s) + 2 HBr (aq) → CaBr2 (aq) + H2 (g)

2. Exactly 23.0 mL of a H₂SO4 solution was required to neutralize 25.0 mL of 0.195 M NaOH. What was the concentration of the H₂SO4 solution? Given: H₂SO4 (aq) + 2NaOH (aq) → 2H₂O (1) + Na₂SO4 (aq)

A chemist adds 0.25 L of a 9.4M silver perchlorate (AgClO.) solution to a reaction flask. Calculate the mass in kilograms of silver perchlorate the chemist has added to the flask. Round your answer to 2 significant digits. kg x10 Ar