<u>Reaction</u> :-
CaCO3 + CH3COOH → Ca(CH3COO)2 + H2O + CO2
Yes it is a chemical change as we know that chemical changes result in formation of new substances, and in this reaction calcium acetate, carbon dioxide, and water are produced.
Method One of Three:
Identifying the Proper Waste Disposal Method
Read the material safety data sheet.
chemical products come with disposal instructions right on the label and following those instructions should be enough. Even for products without disposal instructions, you should still read the labels so you can be aware of the warnings and cautions concerning said products.
Items such as batteries and light bulbs have to be recycled at special recycling centers.
Never mix cleaning products together. If you only have a small amount of cleaning product left in each bottle, it may be tempting to mix them into one bottle for disposal. Different chemicals can react with each other to form very hazardous fumes and noxious gases.
Search the list of hazardous waste
In addition to the product label, you want to read the MSDS for industrial chemicals. The MSDS gives you important information about the chemical: its toxicity, reactivity, and disposal considerations.
Every chemical product you buy should come with an MSDS sheet. However, you can also use the online MSDS database to look up the MSDS for the specific formulation of the chemical you wish to dispose.[1]
Search the list of hazardous wastes
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Sorry that’s all I know :)
NO2- +7H+ + 6e->> NH3 + 2H2O ( N goes from +3 to -3)
<span>Al + 2 H2O >> AlO2- + 4H+ + 3e- </span>
<span>NO2- + 2Al + 2H2O >> NH3 + 2AlO2- + H+ </span>
<span>add OH- on the left and on the right </span>
<span>NO2- + 2 Al + H2O + OH- >> NH3 + 2 AlO2-</span>
<span>Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons.</span>
Answer:
Why is the growing human population a cause for concern?
ALL OF THE ABOVE....
Explanation:
correct me if im wrong: )