1 year ago

How could the student obtain zinc chloride solution from the reaction mixture when all the hydrochloric acid has reacted?

Chemistry

1 answer:

Bezzdna [24]1 year ago

7 0

Answer:

zinc oxide is only sparingly soluble in water so best option is to add zinc oxide to diluted hydrocrolic acid

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SOVA2 [1]

Answer:

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Volume of blood sample=2ml

Minimum mass of acetaminophen that can be detected by automated system= 10×2= 20μg= 0.020mg

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2 years ago

A gas cylinder initially contains 463 L of gas at a pressure of 159 atm. If the final volume of gas is 817 L, what is the final

Agata [3.3K]

Answer:

The final pressure is 90.1 atm.

Explanation:

Assuming constant temperature, we can solve this problem by using Boyle's Law, which states:

P₁V₁=P₂V₂

Where in this case:

P₁ = 159 atm

V₁ = 463 L

P₂ = ?

V₂ = 817 L

We input the given data:

159 atm * 463 L = P₂ * 817 L

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2 years ago

Refrigerators are usually kept at about 5°C, while room temperature is about 20°C. if you were to take an empty sealed 2 liter s

MakcuM [25]

Answer:

c) No, because Celsius is not an absolute temperature scale

Explanation:

converting 5 oC to kelvin which is the absolute temperature scale gives = 273 + 5 = 278 K

and converting 20 oC to kelvin = 20 + 273 = 293 K

the ratio = 278 / 293 = 0.94 approx 1 not 4

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2 years ago

Two parent reproduction involves cell division that includes ___________? *

Anettt [7]

Answer:

Mitosis

Explanation:

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2 years ago

Balanced equation of magnesium metal and hydrochloric acid

Setler79 [48]

The balanced chemical equation is,

2Mg+2HCl→2MgCl+H2↑

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2 years ago