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
joja [24]
3 years ago
8

Where did most of the immigrants to America come from?

Chemistry
1 answer:
BartSMP [9]3 years ago
7 0
Ireland and Germany
You might be interested in
For the reaction:
Zepler [3.9K]

Answer:

The equilibrium constant for CO now

= 0.212 M

For H₂O

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

Explanation:

The chemical equation for the reaction is:

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

The ICE Table for this reaction can be represented as follows:

                   CO(g)      +   H2O(g)   ⇌    CO2(g)   +     H2(g)

Initial            0.5                0.5                   -                      -

Change        -x                   -x                      + x                + x

Equilibrium   0.5 -x           0.5 - x

The equilibrium constantK_c = \dfrac{[x][x]}{[0.5-x][0.5-x]}

K_c = \dfrac{[x]^2}{[0.5-x]^2}

where; K_c = 1.845

1.845 = \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}^2

\sqrt{1.845}= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583 (0.5-x) = x

0.67915  - 1.3583x = x

0.67915  = x +  1.3583x

0.67915 = 2.3583x

x = 0.67915/2.3583

x = 0.2880

The equilibrium constant for CO now = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For H₂O = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

3 0
3 years ago
Assume that a person pouncing a ball represents a closed system. Which
vlada-n [284]

Answer:

A b9th the kintectic and potentilal energy change

3 0
3 years ago
Read 2 more answers
What Is The Difference Between A Monatomic Ion And A Polyatomic Ion What is the difference between a polyatomic ion and a monato
rosijanka [135]

There is one atom in a Monoatomic Ion whereas Many in Polyatomic.

It's simple!!! you're Welcome:)

3 0
4 years ago
The vapor pressure of methanol is 143 mmhg. identify the best reason to explain why methanol spontaneously evaporates in open ai
goldfiish [28.3K]

Answer/Explanation:

Methanol has a molecular weight (32.04 g/mol), low-boiling point and because of its low boiling point, methanol readily evaporates at room temperature.

Under these specified non-standard conditions, the partial pressure of methanol is lower than its vapor pressure and this explains the reason for the spontaneous evaporation exhibited by methanol.

6 0
4 years ago
Do valence electrons show a repeating or periodic pattern
PolarNik [594]

Yes

Explanation:

Valence electrons on the periodic table of elements shows a repeating or periodic pattern. There is a noticeable pattern that can be deduced from the valence electrons in the orbitals of atoms.

    Valence electrons are the electrons in the outermost shell of an element

The periodic table arranges elements based on their atomic numbers. This number denotes the number of protons or electrons an atom contains.

  • The table is divided into groups which are the vertical columns into which elements are classified.
  • The horizontal rows are called periods.
  • A period begins with one valence electron and ends with an atom having complete outer shell structure of an inert gas.
  • Down a group the valence electron is the same. The group number denotes the number of valence electrons in a group. Group 1 has just one valence electron in their outermost shell.

Learn more:

Valence electrons brainly.com/question/12580690

Periodic table brainly.com/question/2014634

#learnwithBrainly

8 0
3 years ago
Other questions:
  • Acetylene, C2H2, can be converted to ethane, C2H6, by a process known as hydrogenation. The reaction is C2H2(g)+2H2(g)?C2H6(g)
    11·2 answers
  • A compound has the formula X2O3 where x is an unknown element. If the compound is 24.26% oxygen, what element does x represent?
    14·1 answer
  • Elements in the same group/family of the periodic table are similar in what way?
    14·2 answers
  • The fizz produced when an alka-seltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate (nahco3)
    10·1 answer
  • A tank at is filled with of chlorine pentafluoride gas and of sulfur hexafluoride gas. You can assume both gases behave as ideal
    8·1 answer
  • Complete the first row in the table by filling in the missing information about a system at equilibrium.
    10·2 answers
  • Complex chemical catalysts produced by living cells are called enzymes. true false
    7·2 answers
  • Volcanoes tend to erupt at places where
    9·2 answers
  • A mixture of hydrocarbons contains 34.8% heptane, C7H16, 10.1% nonane, C9H20, and 55.1% octane, C8H18. The mixture is combusted
    7·1 answer
  • Pls someone smart complete the matching
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!