To balance the chemical equation, you must add COEFFICIENTS in front of the chemical formulas in the equation. You cannot ADD or CHANGE subscripts! Step 1: Determine number of atoms for each element. Step 2: Pick an element that is not equal on both sides of the equation.

Pick an element that is not equal on both sides of the equation. Add coefficients in front of the element and adjust your counts. Continue adding coefficients until you get the same number of elements on each side. Balance each equation. Be sure to show work. Remember you cannot add subscripts of place.

Balancing Act Answer Key: Page 1 Problems 2 Ca + O 2 2 CaO N 2 + 3 H 2 2 NH 3 2 Cu 2O + C 4 Cu + CO 2 2 H 2O 2 2 H 2O + O 2 Hint: Add the O atoms on the product side together when doing the counts. Page 2 Practice Problems 1. 2 Na + MgF 2 2 NaF + Mg 2. Mg + 2 HCl MgCl 2 + H 2 3. Cl 2 + 2 KI 2 KCl + I 2 4.

Balancing Act ‘Overhead Key. Atoms are not CREATED or DESTROYED during a chemical reaction. Scientists know that there must be the SAME number of atoms on each SIDE of the EQUATION. To balance the chemical equation, you must add COEFFICIENTS in front of the chemical formulas in the equation.

The Balancing Act – Balancing Equations Activity Worksheet ANSWER KEY 1 Balancing Equations Activity Worksheet ANSWER KEY . For each equation, enjoy using the seesaw to: 1. Evaluate 2. Solve 3. Check your results . x = 5 – 2 . Evaluate: Unknown Variable = _x_, Coefficient = _1_, Constants = _+5, -2_ Solve: Check:

Balancing Equations Practice (pdf) - A new version of Balancing Act that includes questions about subscripts and coefficients. An answer key is provided. Balancing Equations Challenge (pdf) - A worksheet to use after the Balancing Equations Practice to reinforce what the students have learned about balancing equations. An answer key is provided.

Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas. Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride. Potassium metal and chlorine gas combine to form potassium chloride. Aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas.

Balancing Chemical Equations – Answer Key Balance the equations below: 1) 1 N2 + 3 H2 Æ 2 NH3 2) 2 KClO3 Æ 2 KCl + 3 O2 3) 2 NaCl + 1 F2 Æ 2 NaF + 1 Cl2 4) 2 H2 + 1 O2 Æ 2 H2O 5) 1 Pb(OH)2 + 2 HCl Æ 2 H2O + 1 PbCl2 6) 2 AlBr3 + 3 K2SO4 Æ 6 KBr + 1 Al2(SO4)3 7) 1 CH4 + 2 O2 Æ 1 CO2 + 2 H2O 8) 1 C3H8 + 5 O2 Æ 3 CO2 + 4 H2O 9) 2 C8H18 ...

How to Use the Balancing Act Worksheets. The worksheets are designed with a clear and concise format, providing an example followed by practice equations that increase in complexity. Here’s how students can use them effectively: Start with the Basics: Begin by identifying the number of atoms for each element present in the reactants and products.

To help you out, we have provided the answer key for the balancing act pogil worksheet. It contains the balanced equations for each question, allowing you to check your work and see if you have correctly balanced the equation.