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neonofarm [45]
2 years ago
12

Who is good at CHEMISTRY?????????/I NEED HELP

Chemistry
2 answers:
Pavlova-9 [17]2 years ago
4 0

Answer:

With what?

Explanation:

andrezito [222]2 years ago
4 0

Answer:

I suck at everything except for English and law.

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4. A sample of gas has a pressure of 700 mmHg and 30.0°C. Ar what temperature would the pressure be 600 mmHg if the volume remai
shtirl [24]

Answer:

T₂  = 259.84 K

T₂  = -13.31 °C

Explanation:

Given data:

Initial pressure = 700 mmHg

Initial temperature = 30.0°C (30+273.15 K = 303.15 K)

Final temperature = ?

Final pressure = 600 mmHg

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

700 mmHg /303.15 K  = 600 mmHg / T₂

T₂  = 600 mmHg × 303.15 K / 700 mmHg

T₂  =181890 mmHg.K /700 mmHg

T₂  = 259.84 K

Temperature in celsius

259.84 K - 273.15 = -13.31 °C

7 0
3 years ago
Which two structures would provide a positive identification of a animal cell under a microscope
babunello [35]
Lack of cell walls no chloroplasts...hoped that helped
4 0
3 years ago
Read 2 more answers
Hydrogen bond is an example for? (PLEASE HELP!)
zlopas [31]

Answer:

b)

Explanation:

hydrogen bond is a form of dipole-dipole interaction but with more unique properties

3 0
2 years ago
Cuántos gramos de hidróxido de sodio (NaOH) se debe de agregar a un litro de agua para obtener una disolución al 25% en masa
Tamiku [17]

Answer:

= 250 gramos

Explanation:

No ha preguntado sobre peso / peso o peso / volumen.

Para w / v:

Simplemente tome el 25% de 1000 y luego agréguelo en 1L de agua

La masa de NaOH necesaria es de 250 g.

Para w / w:

250 gramos de NaOH y 750 g de agua, hará que la solución sea 1L.

5 0
3 years ago
What are atoms in general
AVprozaik [17]

Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you.

6 0
3 years ago
Read 2 more answers
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