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
bogdanovich [222]
1 year ago
9

Which of the following can be mixed in solution with H₂CO3 to make a buffer?OA. Na₂CO3OB. HFOC. NH3OD. NaHCO3

Chemistry
1 answer:
masha68 [24]1 year ago
6 0

A buffer system usually will need a weak acid, like H2CO3, which is carbonic acid, and a strong base, and the only compound that could figure a fairly strong base among the options given is Na2CO3. NH3 and NaHCO3 are weak bases and HF is a strong acid. Therefore the best answer will be letter A

You might be interested in
Which of the following bodily organs or systems can be affected by ionizing radiation?
GrogVix [38]
The correct answer is the fourth option. The nervous system is the system in the body which can be affected by ionizing radiation. Exposure to this kind of radiation may lead to changes in motor function or neurological disorders.
5 0
3 years ago
Dipole-dipole interactions are (weaker than, stronger than, equal to) hydrogen bonds.
kozerog [31]

Answer and Explanation:

Dipole-Dipole interactions are <u>weaker than</u> hydrogen bonds.

Hydrogen bonds are a form of dipole-dipole interactions, being the strongest form of dipole-dipole interactions.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

7 0
3 years ago
Please help I have 50 minutes on this quiz!?!
Mariana [72]

Explanation:

put them in where the letters start with

7 0
3 years ago
Directions are in the picture
Mrrafil [7]

Answer:

Question Clear

Explanation:

Make sure your question is clear.

6 0
3 years ago
What was the main reason why Alfred Wegener's theory about the movement of the continents was dismissed in 1912?
eduard

Answer:

His map of the ocean floor did not support his theory

Explanation:

  • Alfred Wegner was a great scientist
  • He observed the plate tectonics of earth and described it in a theory.
  • It was dismissed after viewing his ocean floor
8 0
3 years ago
Other questions:
  • Give the oxidation state of the metal species in each complex. ru(cn)(co)4 -
    8·2 answers
  • when carbon is burned in the air, it reacts with oxygen to form carbon dioxide. when 22.8 g of carbon were burned in the presenc
    12·1 answer
  • A cube has a mass of 100 grams and it’s density to be 1 g/cm cubed . The volume of the cube must be ?
    12·1 answer
  • In chemical kinetics, the magnitude of the rate constant depends on: I. the reaction time of the chemical reaction II. the activ
    13·1 answer
  • What is the octet rule
    12·2 answers
  • In which type of reaction do two lighter nuclei combine to form one heavier nucleus?
    11·2 answers
  • In a car cylinder, a piston moves up and down inside a cylinder, causing the substance inside to expand and contract. Which type
    5·1 answer
  • 45 POINT HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Which of the following is correct in order of lowest
    5·1 answer
  • Read the statement.
    14·1 answer
  • What word is used to refer to a group of organ systems working together?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!