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labwork [276]
3 years ago
6

Lighting a match changes ch and energy into heat.​

Chemistry
1 answer:
otez555 [7]3 years ago
7 0

Answer:

The answer remains the same. The total amount of energy stays the same because the 1st Law of Thermodynamics states that energy can neither be created nor destroyed, it can only change forms. So the chemical energy is just being converted into heat and light.

Explanation:

hope this helps...

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2 years ago
1. A solution with a pH of 9 has a pOH of
Alecsey [184]

Answer:

strength = 10⁻²/10⁻³ = 10 times more acidic

Explanation:

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pH + pOH = 14 => pOH = 14 - pH = 14 - 9 = 5

2. Which is more acidic, a solution with a pH of 6 or a pH of 4?

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3. How many times more acidic is a solution with a pH of 2 than a solution with a pH of 3?

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soln with pH = 3 => [H⁺] = 10⁻³M

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