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
hodyreva [135]
3 years ago
5

Which of the following pairs of substances form a buffer system for human blood?

Chemistry
1 answer:
ss7ja [257]3 years ago
3 0

Answer:

d. Because those chemicals are easily made when CO2 reacts with water, forming H2CO3 (via carbonic anhydrase

You might be interested in
Is CaC1 a ionic , Polar covalant or non polar covalent ?
patriot [66]

Polar Covalent.

This is because both Calcium (Ca) and Carbon (C) are non metals, thus eliminating the ionic option.

It is polar covalent rather than nonpolar covalent due to the fact that the electrons in a polar covalent bond are shared unequally while those in a nonpolar bond are shared equally.

This can be determined by looking at the amount of valence electrons; if the electrons cancel each other out, it is shared equally. If not, it is shared unequally.

Hope this helps!

5 0
3 years ago
Aluminum has a density of 2.70 g/cm3. what would be the mass of a sample whose volume is 10.0 cm3?
anastassius [24]
Hey there!

Density = 2.70 g/cm³

Volume = 10.0 cm³

Therefore:

Mass = density *  volume

Mass = 2.70 * 10.0

Mass = 27.0 g
3 0
3 years ago
An atom of an element has 5 electrons in L-shell.
pishuonlain [190]
I dont know your question but that is true
6 0
3 years ago
Solutions of aluminum nitrate and sodium sulfate react to form sodium nitrate and aluminum sulfate. Classify this reaction.
Temka [501]
C is the correct answer. Double displacement reaction, also called as metathesis, is a type of reaction wherein two compounds react to form new compounds. This case the cations and the anions of the reactants replace each other forming the new compounds.
4 0
3 years ago
Number the steps for balancing equations:
Natali5045456 [20]

Answer:

identify the atoms on each side

count the atoms on its side

use coefficients to increase the atoms on each side

check to make sure you have the same number of each type of atom on each side

3 0
3 years ago
Read 2 more answers
Other questions:
  • By mistake, you added salt instead of sugar to the oil. How can you remove the salt?
    7·2 answers
  • What temperature does water freeze in celsius?
    9·1 answer
  • A piston-cylinder device initially contains water liquid-vapor mixture at the pressure of 700 kPa. The liquid-vapor mixture has
    9·1 answer
  • During an experiment,what is the factor you are testing called
    14·1 answer
  • HELP!!!!!!!!!!!!!!
    9·2 answers
  • Atomic Radius________across (left to right) a period and______down a group.
    5·2 answers
  • Lucy is learning that atoms are made up of several smaller particles.
    8·1 answer
  • 5
    11·1 answer
  • g To recover the copper from solution a small amount of zinc is placed into solution, producing copper metal and zinc ions in so
    5·1 answer
  • Calculate the volume of chlorine molecules produced at room temperature and pressure, when 234g of sodium chloride are electroly
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!