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MakcuM [25]
3 years ago
6

Which of the following is a compound? a. air b. soda c. sterling silver d. water

Chemistry
1 answer:
alukav5142 [94]3 years ago
6 0
B soda is a compound
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At 303 K, the volume of a gas is 30.0 ml. At constant pressure, what is the new
zloy xaker [14]

Answer:

V₂ = 28 mL

Explanation:

Given data:

Initial temperature = 303 K

Initial volume = 30.0 mL

Final temperature = 283 K

Final volume = ?

Solution:

The given problem will be solve through the Charles Law.

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

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 30.0 mL × 283 K /303 K

V₂ = 8490 mL.K / 303 K

V₂ = 28 mL

3 0
2 years ago
Which best describes energy?
BlackZzzverrR [31]

Answer:

The ability to do work

7 0
2 years ago
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During an effusion experiment, a certain number of moles of an unknown gas passed through a tiny hole in 50 seconds. Under the s
mafiozo [28]
50/35 = √x/ √31.9988 g
50 x (√31.9988/ 35) = √x

√x = 8.081...

x= 65.30...

x= 70 g/ mol


3 0
3 years ago
Type a sentence or two about early models of telephones. Include its description.
Evgesh-ka [11]

Answer:early models of telephones were used with a twirl of numbers

Explanation:

Not advanced technology

8 0
3 years ago
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Ferrous ammonium sulfate is what kind of test method.
ratelena [41]
Two things

Ferrous Ammonium Sulfate is a pale green or blue-green powder or sand-like solid. It is used in photography, analytical chemistry, and Iron-plating baths.

An FAS-DPD titration is as simple as a test for total alkalinity or calcium hardness. A buffered DPD indicator powder is added to a water sample and reacts with chlorine to produce the pink color characteristic of the standard DPD test.

Hope this it gang
3 0
2 years ago
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