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What is the temperature, in degrees Celsius, of a sample of matter at 35 K?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
The pH value of a solution is changed from 6.0 to 4.0. Which phrase describes the change in the hydronium ion concentration of the solution?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Which equation represents a redox reaction?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Which equation represents a physical change?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Compared to a 0.10 M aqueous NaNO3 solution at 1 atmosphere, a 1.0 M aqueous NaNO3 solution at 1 atmosphere has a
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Which combination of reactants would result in the fastest reaction rate?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Which equation represents a nuclear fusion reaction?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Which type of cell is represented by the diagram and what change occurs?
lower freezing point and a higher boiling point
increased by a factor of 100
3
-238°C
3
electrolytic cell; electrical energy produces a chemical change
I2(s) → I2(g)
1.0 g of powdered zinc with 10 mL of 2.0 M HCl(aq)
Check it!