Club soda so A, you just gotta match the color that it says for it to the chart and it’ll show the identity the ph which is four I believe It said
Yes, i believe that it can have a physical change but it is most likely chemical.
Answer: two
Explanation:
Oxidation Number of Nitrogen in NO2 (Nitrogen Dioxide) Nitrogen dioxide (NO2) is a molecule which contain two oxygen atom and one nitrogen atom.
Answer:
41.03 %
Explanation:
Given that,
The actual length of a strip of aluminum is 2.12 m
Observed length of a strip of aluminum is 1.25 m
We need to find the student's percent error. The percentage error on any value is given by :

Putting all values, we get :

So, the percent error of the student is 41.03 %.
Sure Maybe its because when they react with water the form an alkali. For example NaOH - from sodium.