Answer: adding salt to the hot water
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Which of the following actions produce a chemical change?
Which of the following actions produce a chemical change ? adding salt to the hot water. Choking is prevented by the...? epiglottis covering the voice box. What do a hydrogen molecule and an oxygen molecule have in common? the size. Which of the following is a non-renewable resource?
Nope. correct answer is "burning the rice". why? adding salt to hot water is the phenomenon of solubilization which is a physical process. ions are indeed coated by water molecules but it does not change the chemical structure but only physical. solid salt is also made of ions. burning the rice leads to chemical reaction of combustion. carbohydrates are turned into CO2 and pure carbon and ...
The following can indicate that a chemical change has taken place although this evidence is not conclusive: • Change of odor. • Change of color (for example silver to reddish-brown when iron rusts).
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Which of the following actions produce a chemical change ? adding salt to the hot water. Choking is prevented by the...? epiglottis covering the voice box. What do a hydrogen molecule and an oxygen molecule h...
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