1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
belka [17]
3 years ago
8

8. Which of the following is an example of a phase?

Chemistry
2 answers:
AleksAgata [21]3 years ago
4 0

Explanation:

8. Qual das alternativas a seguir é um exemplo de fase?

O vapor de água

OTemperatura

O ponto triplo

O pressão

resposta o valor de água

Nikolay [14]3 years ago
3 0
I think it’s most likely Water vapor
You might be interested in
How can a flame test identify an unknown element?
Ilya [14]

Answer:

the answer for this question is the option D

6 0
3 years ago
What is the orbital notation of oxygen?
AlekseyPX

Answer:

Oxygen has 8 electrons. The electron configuration can be written as 1s22s22p4. To draw the orbital diagram, begin with the following observations: the first two electrons will pair up in the 1s orbital; the next two electrons will pair up in the 2s orbital.

Explanation:

8 0
3 years ago
Where does DNA come from? ​
lara [203]

Answer:

The DNA can be found in the cell's nucleus and beside the DNA in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

Explanation:

Hope this helps!

7 0
4 years ago
Read 2 more answers
The partial pressures of the gases in a mixture are 0.255 atm 0, 3.24 atm Ny,
katovenus [111]
<h3>Answer:</h3>

4.945 atm

<h3>Explanation:</h3>
  • Based on Dalton's law of Partial pressure, the total pressure of a mixture of gases is equivalent to the sum of individual partial pressures of the gases in the mixture.
  • That is;

Pt = P1+P2+P3+P4+............+ Pn

In this case;

Partial pressure of Oxygen, P(O) = 0.255 atm

Partial pressure of N, P(N) = 3.24 atm

Partial pressure of Ar, P(Ar) = 1.45 atm

Therefore;

P(total) = P(O) + P(N) + P(Ar)

           = 0.255 atm + 3.24 atm + 1.45 atm

           = 4.945 atm

Therefore, the total pressure of the mixture is 4.945 atm

6 0
3 years ago
you wish to prepare an hc2h3o2 buffer with a ph of 5.44. if the pka of the acid is 4.74, what ratio of c2h3o2-/hc2h3o2 must you
vazorg [7]

The ratio of buffer C₂H₃O₂ /HC₂H₃O₂  must you use are1:0.199 or 10:2

the ratio of buffer C₂H₃O₂ /HC₂H₃O₂  can be calculate using the Henderson-Hasselbalch Equation which relates the pH to the measure of acidity pKa. The equation is given as:

pH = pKa + log ([base]/[acid]

Where,

[base] = concentration of C₂H₃O₂in molarity or moles

[acid] = concentration of HC₂H₃O₂ in molarity or moles

For the sake of easy calculation, allow us to assume that:

[base] =1

[acid] = x

Therefore using equation 1,

5.44 = 4.74 + log (1 / x)

log [base / acid] = 0.7

1 / x = 5.0118

x = 0.199

The required ratio of buffer C₂H₃O₂ /HC₂H₃O₂ is 1:0.199 or 10:2

learn more about buffer ratio here brainly.com/question/4342532

#SPJ4

5 0
1 year ago
Other questions:
  • Air is a mixture state three reasons
    14·1 answer
  • Why is it important to minimize the amount of oil released into the ocean
    8·1 answer
  • If u were sitting in a boat as 6 meter waves passed by, how many seconds would pass between them
    5·1 answer
  • The TV weather forecaster announces that one location has a 30% chance of rain tomorrow and a 35% chance of hail. What is the pr
    13·1 answer
  • 307 g of an unknown mineral is heated to 98.7 °C and placed into a calorimeter that contains 72.4 g of water at 23.6 °C. The hea
    11·1 answer
  • What is the atomic number of an element containing 12 neutrons and having a mass number of 24
    6·1 answer
  • At STP, what is the volume occupied by 6.7 mol H2?​
    15·1 answer
  • Write the configuration for electron: 4, 2, -1, +12
    9·1 answer
  • Which of the following statement is true?
    5·1 answer
  • You have 700,000 atoms of a radioactive substance. After 2 half-lives have past, how
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!