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
igomit [66]
4 years ago
14

At present, cosmologists expect the universe to

Chemistry
1 answer:
ivann1987 [24]4 years ago
4 0

Answer:

Sit still and look pretty! They get their makeup and paint people's faces in the most obnoxious way possible since they're aware of how ugly everyone truly happens to be

You might be interested in
Which of the following is not a property of a buffer solution? a) It is a mixture of a weak acid and its conjugate base. b) Resi
m_a_m_a [10]

Answer:

e) pH is independent of concentration.

Explanation:

a) It is a mixture of a weak acid and its conjugate base. <em>TRUE. </em>A buffer is defined as a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.

b) Resists pH changes because it reacts with added acid or base. <em>TRUE. </em>Thermodynamically, the reaction of added acid or base is faster with the buffer mixture than with H⁺ or OH⁻ ions of the solutions.

c) The maximum buffer capacity is at pH = pKa. <em>TRUE. </em>The buffer capacity is pka±1. For this, buffer capacity is maximum in pka.

d) pH is dependent on the solution ionic strength and temperature. <em>TRUE.</em> Ionic strength and temperature are factors that influence concentrations of ions in solutions as the H⁺ ion that is the responsible

e) pH is independent of concentration. <em>FALSE. </em>pH in a buffer depends completely of concentrations of the acid and its conjugate base or vice versa.

I hope it helps!

8 0
3 years ago
What is the pressure of 20.5 mols of helium gas at 444 K and 999 L
Charra [1.4K]

Answer:

IDK

Explanation:

5 0
3 years ago
What does the prefix trans-indicate?
fredd [130]

Answer:

B. The carbons on either side of the double bond are Pointed in opposite directions

7 0
3 years ago
Which statement accurately describes radioactive dating?
geniusboy [140]

Answer:

its d and can i get brainliest plz:)

Explanation:

7 1
3 years ago
How many moles are in 15 grams of Li?
svetoff [14.1K]

Answer:

there are 2.2 moles of Li in 15 grams of Li

8 0
2 years ago
Read 2 more answers
Other questions:
  • 1. A gas has a pressure of 799.0 mm Hg at 50.0 degrees C. What is the temperature at standard Pressure?
    6·2 answers
  • Which of the following combinations would produce a neutralization reaction?
    10·1 answer
  • For the closed system below: Cu(s) + 2Ag+(aq) 2Ag(s) + Cu2+(aq) How would you know if the system is at equilibrium?
    9·1 answer
  • Sea stack sea arch an sea caves are all examples of land features created by
    14·1 answer
  • Objects that can bew seen only under magnification
    15·1 answer
  • How important is chlorine economically
    15·1 answer
  • Do scientists worldwide use the same units of measurements?
    11·2 answers
  • How many electrons do atoms usually want in their outermost orbital?(Octet Rule)​
    10·1 answer
  • I want to know which ones are molecular equation, complete ionic equation and net ionic equation
    10·1 answer
  • N2 (g) + __ H2 (g) --&gt; _NH3 When the reaction above is completely
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!