1. For each of the following reactions, write the chemical formulas of all react
ID: 838656 • Letter: 1
Question
1. For each of the following reactions, write the chemical formulas of all reactants and all products in the reaction.
a. potassium metal reacts with water to produce potassium hydroxide and hydrogen gas.
b. magnesium metal reacts with water to produce magnesium hydroxide and hydrogen gas.
c. calcium reacts with hydrochloric acid to produce calcium chloride and hydrogen gas.
d. aluminum reacts with hydrochloric acid to produce aluminum chloride and hydrogen gas.
2. Briefly describe how elements are organized on the Periodic Table. Identify the groups of elements that have special names assigned to them and write the name next to the group number.
3. Briefly describe the correct procedure for testing the pH of a solution and explain why this method is used.
Explanation / Answer
Using the pH strip:
Using the Universal Indicator:
THE CORRECT WAY IS TO USE A DROPPER instead of pouring directly from testube or putting the indicator in the solution .
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