A test tube becomes cool to the touch.
Explanation:
The signs for an endothermic reaction would most likely be that a test tube becomes cool to touch. An endothermic reaction is a reaction in which heat is absorbed from the environment.
- At the end of this heat change, the surrounding becomes colder.
- Most endothermic reactions are always shown by the test tube becoming colder.
- For exothermic reaction in which heat is given off to the surroundings, the tube should be hotter.
Learn more:
Exothermic reactions brainly.com/question/10567109
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Polylactic Acid is what it stands for
Answer:
Explanation:
, 
are strong electrolytes. Hence they are fully ionized in aqueous solution.
is a sparingly soluble salt. Hence it remains undissociated in aqueous solution.
So, total ionic equation:
Net ionic equation is written by omitting spectator ions from total ionic equation.
Here, 
and 
ions are spectator ions as they remain present on both side of total ionic equation.
So, net ionic equation:
So, option (d) is correct.
Answer:
No, you cannot
Explanation:
One of the major properties a cancer drug must have is that, it must be highly specific. If a drug that poisons enzymes of anaerobic metabolism is used on a cancer patient, it should be noted that the drug will not only kill cancer cells but will also kill under cells that make use of anaerobic metabolism. Hence, this drug is not a specific to cancer cells but will also affect other normal cells in the patient's body. Thus, it would be wrong to use such drugs to treat cancer.
