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Which of these is measured using the pH scale?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
Which of these best describes why the pH scale is used to describe how acidic or basic a solution is?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
A block of iron will react with acid to produce hydrogen gas. Which of these describes what would happen if iron powered were used instead of a block of iron?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
Which type of reactions absorbs heat from the surroundings?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
What is the definition of “products” in a chemical reaction?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
You did an experiment where you combined a few chemicals and experienced an endothermic reaction. What happened?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
You mix solution A (70 g) with solution B. When they are mixed, a chemical reaction occurs and you end with a total mass of 190 g). What should the mass of solution B be?
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
You combine vinegar, that has a pH of 2, with bleach, that has a pH of 14. The mixture will be a
The result of mixing chemicals in a chemical reaction
120 grams
Heat/energy was absorbed
The reaction would happen at the same speed
Endothermic
The concentrations of hydrogen ions for different substances can be very different
The concentration of hydrogen ions
Strong Base
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