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Orlov [11]
3 years ago
14

Which of the following is an exothermic reaction?

Chemistry
1 answer:
inessss [21]3 years ago
6 0

Answer: Option A) dissolving sugar in water

Explanation:

Sugar belongs to the class of food nutrients called carbohydrates, and it contains high energy bonds in its atoms that reacts with water thereby spontaneously releasing energy (in form of heat) to the surroundings.

Unlike others, energy is released when sugar is dissolved in water, thus the reaction is an example of exothermic reaction.

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Explain the statement - all bases are not alkalis but all alkalis are bases​
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What is the molar concentration of 35 mL of H2SO4 that neutralizes 25 mL of 0.320M NaOH
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V ( H2SO4) = 35 mL / 1000 => 0.035 L

M ( H2SO4) = ?

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<span>2 NaOH + H2SO4 = Na2SO4 + 2 H2O
</span>
2 moles NaOH ---------------------- 1 mole H2SO4
0.008 moles moles NaOH ---------- ??

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hope this helps!



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4 years ago
How many significant figures are in the following number? 0.000485
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