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3 years ago

Su şeker karışımını ayırma yöntemi nedir arkadaşlar

1 answer:

3 0

<span>Suda karıştırıldıysa, kaynatma ile hacmi azaltmayı deneyebilirsiniz, ancak bir veya daha fazla çözüm bulunmaması durumunda çok uzun sürecektir. Çözeltiye fazla aseton ilavesi, filtrelenebilen tuzu çöktürmelidir. Asetondan buharlaşma şeker üretecektir.</span>

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Which of the following does not affect the electrical resistance of a body?

Nastasia [14]

<span>D. Bodies directly surrounding the body</span>

7 0

3 years ago

QUESTION 1: Using the experimental data, calculate the standard reduction potential for each metal, and organise them into a sta

suter [353]

Answer:you should search on google

Explanation:

because its useful

6 0

3 years ago

Below are 5 sets of potential solutes for you to compare. Both members of each pair are very soluble in water. If you had equal

Gelneren [198K]

Answer:

Option D. AlCl₃, MgC₂

Explanation:

We need to dissociate all the salts, to determine the i. (Van't Hoff factor).

The salt who has the highest value, will be the better conductor of electricity

CsCl → Cs⁺ + Cl⁻ i = 2

CaCl → Ca²⁺ + Cl⁻ i = 2

CaS → Ca²⁺ + S⁻² i = 2

Li₂S → 2Li⁺ + S⁻² i = 3

KBr → K⁺ + Br⁻ i = 2

AlCl₃ → Al³⁺ + 3Cl⁻ i = 4

MgC₂ → Mg²⁺ + 2C⁻ i = 3

KI → K⁺ + I⁻ i = 2

K₂S → 2K⁺ + S⁻² i = 3

The biggest i, is in pair D.

6 0

4 years ago

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚C inside a freezer for a night. When he took it out, its new volu

ad-work [718]

Initial volume of the balloon = $V_{1}$ = 348 mL

Initial temperature of the balloon $T_{1}$ = $25.0^{0}C + 273 = 298 K$

Final volume of the balloon $V_{2}$ = 322 mL

Final temperature of the balloon = $T_{2} = ?$

According to Charles law, volume of an ideal gas is directly proportional to the temperature at constant pressure.

$\frac{V_{1} }{T_{1} } =\frac{V_{2} }{T_{2} }$

On plugging in the values,

$\frac{348mL}{298 K} =\frac{322 mL}{T_{2} }$

$T_{2} =276 K$

Therefore, the temperature of the freezer is 276 K

5 0

3 years ago

The weight of the body in the air is .... the weight of the submerged body

stira [4]

Answer:

the correct answer is option 'b': More than

Explanation:

The 2 situations are represented in the attached figures below

When an object is placed in air it is acted upon by force of gravity of earth which is measured as weight of the object.

While as when any object is submerged partially or completely in any fluid the fluid exerts a force in upward direction and this force is known as force of buoyancy and it's magnitude is given by Archimedes law as equal to the weight of the fluid that the body displaces, hence the effective force in the downward direction direction thus the apparent weight of the object in water decreases.

4 0

3 years ago