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Use the Gizmo to find the pH of each of the available substances. Classify each substance as acidic [tex]\((pH \ \textless \ 7)\)[/tex], alkaline [tex]\((pH \ \textgreater \ 7)\)[/tex], or neutral [tex]\((pH = 7)\)[/tex].

\begin{tabular}{|c|c|c|}
\hline \multicolumn{3}{|c|}{[tex]$0 - 14$[/tex] pH Indicator Paper} \\
\hline Material in the Tube & pH Value & Acidic, Alkaline, or Neutral? \\
\hline Baking Soda & & \\
\hline Bleach & & \\
\hline Coffee & & \\
\hline Cola & & \\
\hline Drain Cleaner & & \\
\hline Hand Soap & & \\
\hline Juice (Lemon) & & \\
\hline Juice (Orange) & & \\
\hline Juice (Tomato) & & \\
\hline Milk & & \\
\hline Milk of Magnesia & & \\
\hline Oven Cleaner & & \\
\hline Saliva (Human) & & \\
\hline Shampoo & & \\
\hline Stomach Acid & & \\
\hline Vinegar & & \\
\hline Water (Distilled) & & \\
\hline Water (Ocean) & & \\
\hline
\end{tabular}

Sagot :

GinnyAnswer
Sure, let's classify each substance based on their pH values into acidic, alkaline, or neutral categories.

\begin{tabular}{|c|c|c|}
\hline \multicolumn{3}{|c|}{[tex]$0 - 1 4 ~ p H$[/tex] indicator paper } \\
\hline Material in the tube & pH value & Acidic, alkaline, or neutral? \\
\hline Baking soda & 9 & Alkaline \\
\hline Bleach & 12 & Alkaline \\
\hline Coffee & 5 & Acidic \\
\hline Cola & 2 & Acidic \\
\hline Drain cleaner & 14 & Alkaline \\
\hline Hand soap & 10 & Alkaline \\
\hline Juice (lemon) & 2 & Acidic \\
\hline Juice (orange) & 3.5 & Acidic \\
\hline Juice (tomato) & 4 & Acidic \\
\hline Milk & 6 & Acidic \\
\hline Milk of magnesia & 10.5 & Alkaline \\
\hline Oven cleaner & 13 & Alkaline \\
\hline Saliva (human) & 6.5 & Acidic \\
\hline Shampoo & 5.5 & Acidic \\
\hline Stomach acid & 1 & Acidic \\
\hline Vinegar & 3 & Acidic \\
\hline Water (distilled) & 7 & Neutral \\
\hline Water (ocean) & 8 & Alkaline \\
\hline
\end{tabular}

To summarize, here's how each substance is classified:
- Acidic (pH < 7): Coffee, Cola, Juice (lemon), Juice (orange), Juice (tomato), Milk, Saliva (human), Shampoo, Stomach acid, Vinegar.
- Neutral (pH = 7): Water (distilled).
- Alkaline (pH > 7): Baking soda, Bleach, Drain cleaner, Hand soap, Milk of magnesia, Oven cleaner, Water (ocean).
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