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Alex17521 [72]
3 years ago
10

During an investigation, similar glow sticks were placed in two beakers containing water at different temperatures. A record of

the investigation is shown below:
Investigation Record
Glow Stick Beaker Water
Temperature Duration of Glow Stick in
the Beaker
A 50 °F 2 minutes
B 140 °F 2 minutes


When the glow sticks were bent, chemicals inside reacted to produce a glow. Which statement is most likely correct?
Stick A glows brighter as the rate of reaction inside it is higher.
Stick A glows brighter as the rate of reaction inside it is lower.
Stick B glows brighter as the molecules inside it move faster.
Stick B glows brighter as the molecules inside it move slower.
Chemistry
2 answers:
allochka39001 [22]3 years ago
6 0

Answer:

i got you dawg just gimme one sec i'll get to you fr g

Explanation:

s2008m [1.1K]3 years ago
4 0

Answer:

It would be C i took the test

Explanation:

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The weak acid HZ has a Ka of 2.55x10⁻⁴.(a) Calculate the pH of 0.075 M HZ.
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<u>2.37</u> is the pH of 0.075 M HZ.

<h3>What is pH?</h3>

The term pH, which originally stood for "potential of hydrogen" (or "power of hydrogen"), is used in chemistry to describe how acidic or basic an aqueous solution is. Lower pH values are summarized for acidic solutions (solutions with higher H+ ion concentrations) than for basic or alkaline solutions.

The pH scale is inversely indicates to the concentration of hydrogen ions in the solution and is logarithmic.

⇒pH = -log(a_{H+})

Acidic solutions are those with a pH below 7, and basic solutions are those with a pH above 7, at a temperature of 25 °C (77 °F). At this temperature, solutions with a pH of 7 are neutral (e.g. pure water). The pH neutrality relies on temperature, falling below 7 if the temperature rises above 25 °C.

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