Increase
Explanation:
The density of water will increase when sugar is added to it.
Density of all pure samples of a substance are usually the same.
When sugar is added to water, the density will increase.
- Density is defined as the mass per unit volume of a substance.
Density =
Mass is the amount of matter in a substance.
When we add more sugar to water, the solution will have higher mass than that of ordinary water because more substance is now contained in it.
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Answer:
dehydration
Explanation:
Anabolic reactions in cells frequently employ dehydration synthesis as a. mechanism for building complex macromolecules.
Answer: Option (A) is the correct answer.
Explanation:
Arrhenius acids are the species which dissociate to give hydrogen ions, that is, .
For example,
In the given example, HCN is donating the hydrogen ion therefore, it is an acid whereas is accepting the hydrogen ions so it acts as a base.
Whereas according to Arrhenius, bases are the species which dissociate to give hydroxide ions, that is, .
For example,
Thus, we can conclude that the statement only positive ion in solution is best describes the solution produced when an Arrhenius acid is dissolved in water.
Colligative
properties calculations are used for this type of problem. Calculations are as
follows:<span>
</span>
<span>ΔT(freezing point)
= (Kf)m
ΔT(freezing point)
= 1.86 °C kg / mol (0.705)
ΔT(freezing point) = 1.3113 °C
</span>
<span>
</span>
<span>Hope this answers the question. Have a nice day.</span>
Answer:
=1.4953 moles
Explanation:
Iron (III) Oxide is reduced by carbon (II) oxide into Iron. According to the following equation, One mole of Fe₂O₃ react with 3 moles of CO to produce 2 moles of Fe. Thus the reaction ratio of CO to Fe₂O₃ is 3:1
Fe₂O₃₍s₎ + 3CO → 2Fe₍s₎ + 3CO₂₍g₎
125.6 grams of CO is equivalent to: 125.6g/28.0g/mol
=4.486 moles.
The number of moles of Fe produced by the reaction is:
=(4.486 moles×1)/3
=1.4953 moles