Equations & Reaction Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Chemical Reaction | Occurs when one or more substances change or recombine in new ways to form new substances |
Reactants | The starting materials in a chemical reaction (on the left side) |
Products | The substances that are the result of the change in the chemical reaction (on the right side) |
Signs of a chemical change | Formation of precipitate, temperature change, color change, or formation of gas |
Law of Conservation of Matter and Energy | Reactions must converve matter (mass and charge), and energy. Conserve EVERYTHING! |
Chemical Equation | Using symbols and numbers to represent the changes that occur during a chemical reaction |
Coefficients | big numbers put in front of formulas to balance an equation |
Synthesis (direct combination) | combine 2 or more reactants to make a bigger product |
Decomposition | break down a big reactant into smaller chemicals |
Single Replacement | One element is kicked out of a compound and replaced by another. Table J tells if this can be spontaneous. |
Double Replacement | Chemical square dance do-si-do. Positive and negative ions trade partners. |
Precipitate | A cloudy, solid that forms from soluble reactants |
Subscripts | The little numbers after the symbols to tell how many atoms there are |
The driving force for chemical reactions | Elements react to become more stable |
Empirical Formula | a formula in which the quantities of each element are written in the lowest whole number ratio |
Molecular Formula | a formula in which the quantities of each element are written in the whole number ratio that could be recuced further |
Phase Symbols | (s) = solid; (l) =liquid; (g) =gas; (aq)=solution in water |
How table J works | Higher (more reactive) elements can kick lower elements out of their compounds and take their place in single replacement reactions. |
Created by:
PRO Teacher
etucci
Popular Chemistry sets