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
Step2247 [10]
3 years ago
6

Give two examples of amphibians. describe one similarity and difference between amphibians and fish

Chemistry
1 answer:
Nesterboy [21]3 years ago
7 0
Stop being a lil mark buster 
You might be interested in
What is the name of The compound?
Liono4ka [1.6K]

Answer:

But-2-ene is your answer i guess

5 0
3 years ago
Crude petroleum is a mixture of many different components. How might one separate out the components to begin the process of ref
dimaraw [331]

Fractional distillation is used for the refining of crude petroleum.

<h3>How are the components of crude petroleum separated out?</h3>

Fractional distillation is the procedure used to separate crude oil's numerous constituents.

  • A mixture is divided into several components, known as fractions, using fractional distillation.
  • A combination of hydrocarbons makes up crude oil. The crude oil evaporates, and in the fractionating column, its vapors condense at various temperatures.
  • The hydrocarbon molecules in each percent have a comparable number of carbon atoms and a comparable range of boiling points.
  • The mixture is placed above a tall fractionating column that has multiple condensers coming off at various heights.
  • The bottom of the column is warm, while the top is cool. High boiling point compounds condense at the bottom, whereas low boiling point substances condense as they ascend.

Learn more about fractional distillation here:

brainly.com/question/15187318

#SPJ4

8 0
1 year ago
Mixing salt with water is an example of a _________change. *<br> physical change<br> chemical change
SIZIF [17.4K]

Answer:

physical

Explanation:

no chemical reaction is happening

6 0
3 years ago
Determine how many liters of hydrogen adjusted to STP there are in a 50.0 liter steel cylinder if the pressure inside is 100.0 a
Dvinal [7]

Answer : The volume of hydrogen gas at STP is 4550 L.

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 100.0 atm

P_2 = final pressure of gas at STP = 1 atm

V_1 = initial volume of gas = 50.0 L

V_2 = final volume of gas at STP = ?

T_1 = initial temperature of gas = 27.0^oC=273+27.0=300K

T_2 = final temperature of gas at STP = 0^oC=273+0=273K

Now put all the given values in the above equation, we get:

\frac{100.0atm\times 50.0L}{300K}=\frac{1atm\times V_2}{273K}

V_2=4550L

Therefore, the volume of hydrogen gas at STP is 4550 L.

3 0
3 years ago
Describe the relationship between hydrogen ions (h+) and ph. how is ph related to a solution's acideic
natita [175]
The pH = -log of hydrogen ion concentration

The more acid a solution is the higher is its concentration of H+ ions and the lower is its pH. Acids have a pH lower that 7.
5 0
3 years ago
Other questions:
  • Which of the following exerts the greatest pressure on the ground?
    9·2 answers
  • (a) 4.64 x 1024 atoms Bi into grams
    8·1 answer
  • Consider the general reversible reaction. Lower A upper A plus lower B upper B double-headed arrow lower C upper C plus Lower d
    8·1 answer
  • Infer What happens to a liquid that is not in a container ?
    14·2 answers
  • A car is traveling with an initial velocity of 15 m/s when the driver decides to go faster by accelerating at 5 m/s2 for 10 seco
    8·1 answer
  • If I have an unknown quantity of gas at STP with a volume of 41 liters, how many moles of gas do
    7·1 answer
  • In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)
    15·1 answer
  • What does it mean if a substance is insoluble? A. It does not dissolve. B. It dissolves in another substance. C. It makes new mo
    15·1 answer
  • Fill in the blank.<br> 9.31x10^3 = [ ? ]x 10^5
    12·1 answer
  • What is the pH of a 8.4x10⁻6 M H+solution?<br> What is pH?<br><br> pH=[?]
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!