Me
you will earn 50 points if you answer it correct.
1. which of the combina...
Chemistry, 14.10.2019 23:10 live4dramaoy0yf9
Me
you will earn 50 points if you answer it correct.
1. which of the combinations in the lab activity had indications that a chemical change occurred? defend your argument with evidence.
2. which of the combinations in the lab activity had indications that a physical change occurred? defend your argument with evidence.
3. are all physical changes reversible? explain your answer using an example you've observed in your everyday life.
4. give an example of something you've observed in your everyday life that is a chemical reaction. how did you know it was a chemical reaction?
Answers: 1
Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest
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Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
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Chemistry, 23.06.2019 01:30
At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
Answers: 1
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