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melisa1 [442]
2 years ago
6

A sample of river water taken near a factory shows pH 5. Does this represent a pollution problem?

Chemistry
1 answer:
melomori [17]2 years ago
3 0

Yes because a pH below 7 is acidic and that means that there is pollution

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What are the two parts of the third Step?
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A

Explanation:

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Calculate the amount of heat energy required to heat up 21.5 grams of ice from -15 °C to 10°C.
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Answer:

8.74kj

Explanation:

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One of the few xenon compounds that form is cesium xenon heptafluoride (CsXeF7). How many moles of CsXeF7 can be produced from t
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Explanation :

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CsF(s)+XeF_6(s)\rightarrow CsXeF_7(s)

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As 14 moles of cesium fluoride react with the 14 moles of xenon hexafluoride to give 14 moles of cesium xenon heptafluoride.

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3 years ago
A piece of chocolate with a mass of 8 grams melts. What is the mass of the melted chocolate?
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Answer:

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