During a lab activity, students prepared two solutions separately at the same temperature. Later they mixed the solutions and th e temperature dropped. Why?
2 answers:
If the temperature drops that means it is an endothermic reaction which makes the correct answer "energy was absorbed during the chemical reaction."
Answer:
Energy was absorbed during the chemical reaction.
Explanation:
When the temperature of a reaction mixture drops, then the reaction is endothermic. Heat was absorbed by the reaction mixture leading to a drop in temperature.
This drop in temperature tells us that the energy of reactants is greater than the energy of products in the reaction hence ∆H is positive.
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Answer:
<h2>3.31 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 23.2 g
volume = final volume of water - initial volume of water
volume = 62 - 55 = 7 mL
We have
We have the final answer as
<h3>3.31 g/mL</h3>
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Answer:
A. 22.41
Explanation:
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Do you mean addiction? Genetics can make people more vulnerable to addiction, but I’m not sure what it means to be venerable to addition lol
<span>Physical properties are any properties of matter which can be perceived or observed without changing the chemical identity of the sample.</span>
