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2 years ago

What is the biggest cause of change in Earth's systems?

Chemistry

2 answers:

Dima020 [189]2 years ago

5 0

Answer:

heat

Explanation:

because it's the cause of change

Vlad1618 [11]2 years ago

3 0

Answer:

heat

Explanation:

because it is a natural factor that causes the change in Earth's system

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The chemical properties of an atom are related to the arrangement of what

jolli1 [7]

Chemical properties of an atom are based upon the arrangement of valence electrons (electrons which can be gained, lost, or shared).

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3 years ago

On the periodic table, what is used to determine the order of elements? (Use your own words? Help please!!!

Angelina_Jolie [31]

Elements are listed in order of increasing atomic number from the left to the right.

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3 years ago

Read 2 more answers

matrenka [14]

Answer:

Yes.

Explanation:

Yes, this difference of readings will definitely affect the results of the experiment as well as the E values because the readings taken by both students are different from one another. There is a fault in one of the thermometer because both shows different readings of temperature of the same solution. This will affect the overall experiment and due to this error, we are unable to tell that which one reading is correct so the answer is uncertain or unsure.

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2 years ago

Which of these objects in the solar system have impact craters. The Moon Earth Mars

Vaselesa [24]

Answer: The moon

Explanation: hope this helps.

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3 years ago

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Compounds A, B, and C react according to the following equation. 3A(g) + 2B(g) 2C(g) At 100°C a mixture of these gases at equili

Vedmedyk [2.9K]

Answer:

The value of Kc for the reaction is 3.24

Explanation:

A reversible chemical reaction, indicated by a double arrow, occurs in both directions: reagents transforming into products ( direct reaction) and products transforming back into reagents (inverse reaction)

Chemical Equilibrium is the state in which direct and indirect reactions have the same reaction rate. Then taking into account the rate constant of a direct reaction and its inverse the chemical constant Kc is defined.

Being:

aA + bB ⇔ cC + dD

where a, b, c and d are the stoichiometric coefficients, the equilibrium constant with the following equation:

$Kc=\frac{[C]^{c} *[D]^{d} }{[A]^{a} *[B]^{b} }$

Kc is equal to the multiplication of the concentrations of the products raised to their stoichiometric coefficients divided by the multiplication of the concentrations of the reagents also raised to their stoichiometric coefficients.

Then, in the reaction 3A(g) + 2B(g) ⇔ 2C(g), the constant Kc is:

$Kc=\frac{[C]^{2} }{[A]^{3} *[B]^{2} }$

where:

[A]= 0.855 M
[B]= 1.23 M
[C]= 1.75 M

Replacing:

$Kc=\frac{1.75^{2} }{0.855^{3}*1.23^{2} }$

Solving you get:

Kc=3.24

The value of Kc for the reaction is 3.24

8 0

3 years ago