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
Sauron [17]
3 years ago
8

I NEED HELP!!

Chemistry
1 answer:
shusha [124]3 years ago
7 0

Answer:

1 B

2A

#D

3B

1D

2B

3C

4A

A,C,A,B

C,A,C,A

C,A,A,B

Explanation:

Easy ive done this brings back memories

You might be interested in
Is air a conductor or insulator
maksim [4K]
Insulator! I hope this helps! Pls mark mine the brainliest;)
6 0
3 years ago
Read 2 more answers
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2 satisfies the equilibri
lorasvet [3.4K]

Explanation:

The reaction equation will be as follows.

           CO_{2}(aq) + H_{2}O \rightleftharpoons H^{+}(aq) + HCO^{-}_{3}(aq)

Calculate the amount of CO_{2} dissolved as follows.

             CO_{2}(aq) = K_{CO_{2}} \times P_{CO_{2}}

It is given that K_{CO_{2}} = 0.032 M/atm and P_{CO_{2}} = 1.9 \times 10^{-4} atm.

Hence, [CO_{2}] will be calculated as follows.

           [CO_{2}] = K_{CO_{2}} \times P_{CO_{2}}          

                           = 0.032 M/atm \times 1.9 \times 10^{-4}atm

                           = 0.0608 \times 10^{-4}

or,                        = 0.608 \times 10^{-5}

It is given that K_{a} = 4.46 \times 10^{-7}

As,      K_{a} = \frac{[H^{+}]^{2}}{[CO_{2}]}

          4.46 \times 10^{-7} = \frac{[H^{+}]^{2}}{0.608 \times 10^{-5}}  

               [H^{+}]^{2} = 2.71 \times 10^{-12}

                      [H^{+}] = 1.64 \times 10^{-6}

Since, we know that pH = -log [H^{+}]

So,                      pH = -log (1.64 \times 10^{-6})

                                 = 5.7

Therefore, we can conclude that pH of water in equilibrium with the atmosphere is 5.7.

3 0
3 years ago
What was a major accomplishment of the Apollo mission
denpristay [2]
Hi there!

The <span>major accomplishment of the Apollo missions was to successfully land Americans on the Moon and to return them safely to Earth. One major reason for this was to establish a way for us to travel to other celestial bodies safely so we could research them and study how they work or to see if they are inhabitable.

-Your friend, ASIAX</span>
4 0
3 years ago
A molecular compound is?
Nezavi [6.7K]
Composed of molecules formed by atoms of two or more different elements.
3 0
3 years ago
Read 2 more answers
Whetes the most of the mass of our solar system today
Simora [160]
Planets, black wholes gravity
3 0
3 years ago
Other questions:
  • What is the change in enthalpy for the single replacement reaction between solid zinc and Cs2SO4 in solution to produce cesium a
    7·1 answer
  • What substance is given off when salt is heated gently?​
    5·1 answer
  • Nuclear decay is a first-order kinetics process. What is the half-life of a radioactive isotope if it takes 233 minutes for the
    9·1 answer
  • The heat of fusion for water is the amount of energy that must be absorbed for water to ___. a.evaporate b.freeze a.boil d.melt
    14·1 answer
  • The symbol equation for combustion of a hydrocarbon is shown below. What number will go before the oxygen reactant when
    15·1 answer
  • How do S waves move through the earth?
    10·1 answer
  • ¿Qué establece la ley de la conservación de la materia? Explicar.
    5·1 answer
  • Think about a stalk of corn. You can see it has roots, a stalk, and leaves. You know it reproduces with pollen from the tassels
    15·1 answer
  • Explain three reasons why potassium is larger than sodium.
    15·1 answer
  • Write 5 complex molecules and name them
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!