![subject](/tpl/images/cats/himiya.png)
In real-life situations, workers collect water samples in a lake or stream instead of using samples a and b. for this lab to work, sodium carbonate was added to make the water samples alkaline. in lakes and streams it is calcium carbonate (caco3) that causes alkalinity. calcium carbonate acts as a buffer, a substance that serves to resist small changes in acidity or alkalinity in a solution. when acid rain enters lake water, it can be neutralized by the bases present and thus the lake does not become too acidic. since the key ion is the hydroxide ion, the nature of the cation doesn't matter in this case. right now, pollution workers are measuring calcium carbonate in lakes and streams. if a worker studied two lakes and lake x had a greater ppm of calcium carbonate than lake z, which of the two lakes would be able to withstand a greater amount of acid rain? explain your answer.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 22:30
Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation
Answers: 1
You know the right answer?
In real-life situations, workers collect water samples in a lake or stream instead of using samples...
Questions
![question](/tpl/images/cats/en.png)
English, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 20:31
![question](/tpl/images/cats/ekonomika.png)
Business, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 20:31
![question](/tpl/images/cats/fizika.png)
Physics, 18.11.2019 20:31
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 20:31
![question](/tpl/images/cats/biologiya.png)
Biology, 18.11.2019 20:31
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 20:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.11.2019 20:31