CH111 Lecture Notes - Lecture 10: Chemical Equation, Balance Equation, Sodium Nitrate

48 views5 pages

olivedeer219

25 Dec 2018

School

Benjamin Franklin Institute of Technology

Department

Chemistry

Course

CH111

Professor

Hughes

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

What are the diatomic atoms? (atoms that always appear with subscript two) Process by which atoms of one or more substances are rearranged to form different substances. Reactants are starting substances, products are substances formed. Solid iron and chlorine gas react to produce solid iron(iii) chloride . Coefficients as written already in lowest possible ratio. Balance c3h8(g) + o2(g) co2(g) + h2o(g) Answer: c3h8(g) + 5o2(g) 3co2(g) + 4h2o(g) Balance nh3(g) + o2(g) n2(g) + h2o(l) Answer: 4nh3(g) + 3o2(g) 2n2(g) + 6h2o(l) 2: m1(s) + m2x(aq) m2(s) + m1x(aq, m1 = metal # 1 solid metal, m2 = metal # 2 in ionic compound, replacement only happens when m1 is more active (more reactive) than m2. Zinc: ni(s) + nano3(aq) nr, nr = no reaction, because nickel is not more reactive than sodium. One metal (solid) replaces 2d metal in an aqueous ionic compound.

Related Questions

Iron metal reacts with chlorine gas giving iron(III) chloride. The balanced chemical equation for this reaction is: 2 Fe(s) + 3 Cl₂(g) → 2 FeCl₃(s). Beginning with 43.0 g of iron, what mass of Cl₂, in grams, is required for the complete reaction? What mass of FeCl₃ can be produced?

aquamarinedog663

In the reaction of iron metal and chlorine gas:

a.) What is its balanced equation?

b.) Beginning with 10.0 g of iron, what mass of Cl₂, in grams, is required for a complete reaction? What mass of FeCl₃ can be produced?

c.) If only 18.5 g of FeCl₃ is obtained from 10.0 g of iron and excess Cl₂, what is the percent yield?

d.) If 10.0 g each of iron and chlorine are combined, what is the theoretical yield of iron(III) chloride?

ceruleanbat240

Science Tutor: Chemistry Name: Mixtures, Solutions, &Compounds: Chemical Equations Date Chemical Equations If a chemical symbol can be thought of as a letter and a chemical formula as a word in the language of chemistry, then a chemical equation is a statement or sentence. A chemical equation is a shorthand way of describing a chemical reaction between two or more substances. A "+ sign means "combines with." An arrow points away from the reactants and toward the products (See page 10), and an arrow means "yields." 2Na + Cl2 â 2NaCl means sodium combines with chlorine to yield sodiumn chloride (salt) Look closely at the equation above. Notice the "2" in front of NaCI on the right and Na on the left. That 2, called a coefficient, is necessary to make this equation balance. Remember Antoine Lavoisier? (Page 15) Matter is neither created nor destroyed in a chemical reaction. The same number of each kind of atom must be on both sides of a chemical equation. Because chlorine only exists as a molecule consisting of two chlorine atoms, it requires two atoms of sodium to yield two molecules of salt (NaCI). This illustrates another important law stated clearly by the French chemist Joseph-Louis Proust in 1799. Chemical compounds always combine in certain specific fixed proportions. Wherever sodium and chlorine combine, two atoms of sodium will be necessary to react with one molecule of gaseous chlorine. 1 . For the equation 2Mg + O2â 2MgO + energy: A. List the reactant or reactants 2Hato B. List the product or products C. How many atoms of magnesium does it take to combine with one molecule of oxygen? D. How many molecules of magnesium oxide are produced in this reaction? 2. Hydrogen can combine with oxygen to produce water. We could write the equation like this: H2 + O2 â H2O. But this equation is unbalanced! Rewrite this equation with the correct coefficients so that an atom of oxygen doesn't disappear! (Be careful. If you add a coefficient to one side you may have to adjust the other. Count all the atoms.) 3. Now that you have the idea, balance the following equations: A, Pho, â PbO + 02 C. Ca + H2O â Ca(OH)2 + H2 How is following a recipe to mix up a batch of biscuits (or any other food item) similar to Proust's law for chemical reactions? 4. OMark Twain Media, Inc., Publishers 17

CH111 Lecture Notes - Lecture 10: Chemical Equation, Balance Equation, Sodium Nitrate

Document Summary

Get access

Related Documents

01:160:161 Lecture Notes - Lecture 16: Bromine, Interhalogen, Limiting Reagent

CHEM 1404 Midterm: Study Guide for EXAM 3

CHEM 1021 Lecture Notes - Lecture 5: Iron(Iii) Oxide, Aluminium Oxide, Reagent

Related Questions