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lisov135 [29]
3 years ago
12

What element has the lowest melting point

Chemistry
1 answer:
kap26 [50]3 years ago
8 0
Helium (He) has the lowest melting point of <span>-272.2 °C.</span>
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Which equation represents a neutralization reaction?
Harrizon [31]

Answer: HCI + KOH → KCI + H20

Explanation:

HCI(aq) + KOH(aq) → KCI(aq) + H20(l)

Acid + base → Salt + Water.

The above is a neutralization reaction in which an acid, aqeous HCl reacts completely with an appropriate amount of a base, aqueous KOH to produce salt, aqueous KCl and water, liquid H2O only.

This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.

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2 years ago
What is the mass of H2O in 3 moles?
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g In science, we like to develop explanations that we can use to predict the outcome of events and phenomena. Try to develop an
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Answer:

See explanation

Explanation:

A titration involves the addition of a titrant to an analyte solution. It is a method of volumetric analysis.

When a particular volume of titrant is added, the colour changes to signal the end point of the reaction.

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Hence the volume NaOH that needs to be added to the beaker containing HCl to cause a colour change is the volume of NaOH that is just enough to completely neutralize the HCl solution.

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If you add oil to water and shake the two liquids together what will you form
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