For each of the following reactions:
A. Write names and correct formulas for all reactants.
B. Write names and correct formulas for all products.
C. Write a balanced chemical equation, including (s), (g), (aq), and (l). *That’s an “l” as in “little. “*
1. Magnesium metal reacts with hydrochloric acid to form magnesium chloride solution and hydrogen gas.
2. Solid magnesium sulfide and aqueous hydrochloric acid react to form hydrogen sulfide gas and magnesium chloride solution.
3. Aluminum metal burns in pure oxygen to produce solid aluminum oxide.
4. Hydrogen sulfide gas is bubbled through a sodium hydroxide solution to produce sodium sulfide in solution and liquid water.
5. Hydrogen gas and aluminum chloride solution are produced when solid aluminum is reacted with hydrochloric acid.
6. A solution of ammonium sulfate added to a sol. of lead (II) nitrate, forming soluble ammonium nitrate and solid lead (II) sulfate.
Please help, thanks if you do. Giving best answer, too!
1. Mg + 2HCl (aq) —> MgCl2 (aq)+H2 (g)
2. MgS(s) + 2 HCl (aq) –> H2S (g) + MgCl2 (aq)
3. 4Al + 3O2 (g) —-> 2Al2O3 (s)
4 H2S (g) + 2NaOH (aq) —> Na2S (s) + 2H20 (aq)
5. 2Al + 6HCl (aq) —> 3H2 (g) + 2AlCl3 (aq)
6. (NH4)2SO4 (aq) + Pb(NO3)2 (aq)—> 2NH4NO3 (aq)+ PbSO4 (s)
Note: Anything that is a metal should have a superscript little zero as a metal symbol but I do not have the ability to add it in this program. Also, I’ve never heard of (l) when writing a chemical reaction, its either aqueous, solid, metal, or gas.
Ah, the Ionic and Molecular compounds. Well, when they say the compund or element heats up, put a triangle over the arrow from the reactant to the product!
Single Replacement= element + compund— element + compund( the elements just switch around)
Double Replacement=compound + compound—compound + compound( usually elements switch around)
Synthesis=element + element— compound
Combustion= element+ compound— compound(always in the gaseous form from reacting hydrides with oxides)
Also, u will need to think out formulas with catalysts and make sure u got ur symbols. Like number four and six have an aqueous solution, and number five has elements in the gaseous state. FYI, number three has combustion and u’ll need 2 use the heat symbol, triangle. Good luck!
On balanced equations, make sure u count the amount of elements on the whole side of each side of those formulas. If they don’t even out on each side then put in coefficients. Remember, never change subscripts! When u have to add subscripts first, think out the whole compound and know the diatomic elements!