Content block: Coloring text

In this content block, the solver is presented with a text in which certain parts (words or phrases) can be colored. The table of possible colors is in a separate box. The solver must select the desired color by clicking on it, then click on the parts of the text that they want to color.

 

First, click on the color, then click on the word or text part in the text that is to be colored with that color. To remove the selection, click on the colored text part again.

Choose the color corresponding to each class of matter and use it to mark the formulas of the substances that belong to that class in the list. Note that some substances on the list do not belong to any class.

First, pick the color corresponding to the class of matter, then click on the correct formula.


HCl, CO2, NaCl, Al(OH)3, Fe2O3, CaCO3, MgO, H2, KOH, N2O5, H3PO4, HBr, FeCl3, CuSO4, NaI, Mg(OH)2, O2, H2S
 
Acids
Salts
Oxides
Hydroxides