14. a) CaCl2 – Calcium Chloride b) Fe(NO3)3 – Iron (III) Nitrate c) SO3 – Sulfur Trioxide d) HsSO4 – Mercury (II) Sulfate e) Ag2CO3 – Silver Carbonate 15. a) Gold (III) Oxide – Au2O3 b) Nitrogen Tribromide – NBr3 c) Nickel (II) Phosphate – Ni3(PO4)2 d) Magnesium Hydroxide – Mg(OH)2 e) Lithium Nitride – Li3N 16. a) Ba + O2 = 2BaO b) AgNO3 + CuCl2 = 2AgCl + Cu(NO3)2 c) Mg + 2FeF3 = 2Fe + 3MgF2 d) CaO + 2H3PO4 = Ca3(PO4)2 + 3H2O e) (NH4)2S + 2CoCl3 = Co2S3 + 6NH4Cl 17. a) Single displacement b) Decomposition c) Synthesis d) Double displacement e) Decomposition f) Single displacement g) Double displacement h) Synthesis 18. Mg+CuCl2: reaction occurs- copper is below Magnesium, that’s why magnesium is more active and will replace copper. PbSO4+Zn: …show more content…
Zinc: the only metal small bubbles visible on the nail in one hour. This mean Zinc has the highest reactivity. Iron: started showing small bubbles after 5 hour. Nickel: after a day of wait, nickel became a bit …show more content…
. a) Sulphuric acid + sodium hydroxide = sodium sulphate + water Balanced: H2SO4 + 2NaOH = Na2SO4 + 2H2O Unbalanced: H2SO4 + NaOH = Na2SO4 + H2O b) Magnesium hydroxide + hydrochloric acid = magnesium chloride + water Balanced: Mg(OH)2 + 2HCl = MgCl2 + 2H2O Unbalanced: Mg(OH)2 + HCl = MgCl2 + H2O c) Nitric acid + Lithium hydroxide = Lithium nitrate + water Balanced: This chemical equation is already balanced. (HNO3 + LiOH = H2O + LiNO3) Unbalanced: HNO3 + LiOH = H2O + LiNO3 d) Sulfuric acid + Sodium hydroxide = Sodium sulfate + water Balanced: H2SO4 + 2 NaOH = Na2SO4 + 2 H2O Unbalanced: H2SO4 + NaOH = Na2SO4 + H2O 22. a) Word equation: Carbon + Oxygen = Carbon Dioxide Balanced equation: C + O2 = CO2 Word equation: Sulfur + Oxygen = Sulfur Dioxide Balanced equation: S + O2 = SO2 b) Sulfur dioxide is harmful, because water makes sulfurous acid and because of the harsh nature of phosphoric acid. c) Word equation: Sulfur + Oxygen = Sulfur Dioxide Balanced equation: S + O2 = SO2 (toxic gas) Word equation: Sulfur dioxide + water = Sulfurous acid Balanced equation: SO2 + H2O = H2SO3 (Acid Rain) 23. a) complete combustion reaction b) complete combustion reaction c) incomplete combustion reaction d) incomplete combustion
The hypothesis is; as we know the concentration of sodium carbonate (Na2CO3) we can obtain the concentration of hydrochloric acid using the titration of a standard solution.
Cu 2+ (aq) + 2 NO3- (aq) + Na+ (aq) + I- (aq) CuI (s) + Na+ (aq) + 2 NO3- (aq)
To study the nature of ionic reactions, write balanced equations, and write net ionic equations for precipitation reactions.
Your Finding: Color change occurs and copper is appearing. Reaction 2 Mg + CuSo4→ MgSo4 + Cu Hypothesis: There is going to be a reaction because magnesium is more active than copper. Your Finding: Color change occurs and copper is appearing. Reaction 3 Cu + 2AgNO3 → Cu(No3)2 + 2Ag Hypothesis:
: During each reaction, something happened. During reaction 1, after adding the nitric acid a red-brown gas was created. The copper first turned green after a few minutes turned into a blue solution. Reaction 2, When acid was added a blue precipitate formed. Reaction 3, when heated the solution turned into a black precipitate.
When mixed, none of the metals seemed to react, as none of them emitted gas by bubbling/fizzing and none changed color. This could have been predicted as Magnesium is towards the top of the activity series, and would not have been replaced by Fe, Cu, or Zn as all those are lower on the activity series. The activity series is a guide which helps predicts chemical reactions, as it lists which metals can replace or be replaced by other metals. Part of the reactivity series is as follows, Na>Mg>Zn>Fe>Sn> Pb>H>Cu>Ag.
Write a balanced equation for the synthesis reaction that occurred. The balanced equation for the synthesis reaction that occurred in experiment 1 is: 2Mg + O2 → 2MgO. Experiment 2 1. A hydrate is a chemical compound that has water molecules bound loosely to it by electrostatic forces.
These combinations were as follows: Iron (III) Nitrate and Sodium Phosphate Iron (III) Nitrate and Sodium
Reaction B: Cu(NO3)2(aq)+ 2NaOH(aq) → Cu(OH)2(s)+ 2NaNO3(aq) Reaction C: Cu(OH)2(s) → CuO(s)+ H2O(l) Reaction D: CuO(s)+ H2SO4(aq) → CuSO4(aq)+ H2O(l) Reaction E: CuSO4(aq)+ Zn(s) →ZnSO4(aq)+ Cu(s) ZnSO4(aq)+ H2SO4(aq) →ZnSO4(aq)+
The reason why Na2SO4 only reacts with Ca(NO3)2 is because when sulfate combines with calcium (or Ag, Sr, Ba, Pb), it becomes insoluble. In the other reactions, copper, nickel, and zinc were all soluble when combined with sulfate. Also, no precipitate formed when mixed with KI because both elements in the molecule are soluble when combined with other elements, except for Ag, Pb, and Hg when combined with a halide. This lab shows that some elements and ions are soluble while others are not and that there are some exceptions to the rule. During our first try, my group had few errors.
Then the correct amount of each reactant had to be determined by turning .03 moles into grams and milliliters to use in the experiment.
I believe Calcium + Water -> Calcium Hydroxide + Hydrogen. This is a single replacement reaction type. 1 Ca + 2 H2O -> 1 Ca(OH) + 1 H2 This formula is a single replacement reaction type because only the calcium and the oxygen can switch. Copper(II) Carbonate ->
Reaction two should result in disodium phosphate (Na2HPO4) with a formula weight of 141.96 g/mol and reaction three should achieve monosodium phosphate (NaH2PO4) with a formula weight of 119.98 g/mol.
The reaction between the bicarbonate ion and citric acid produces water, carbon dioxide, and the citrate ion. Write the balanced equation for the reaction.