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3 years ago

Write a balanced equation for the combustion of propane. (be sure to include states of matter in your equation.)

Chemistry

1 answer:

andreev551 [17]3 years ago

7 0

$C_{3}H_{8} (g) + 5O_{2}(g) --\ \textgreater \ 3CO_{2}(g)+4H_{2}O(l)$

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2NO (g) + O2 (g) →2NO2 (g) At equilibrium [NO] = 2.4 × 10 -3 M, [O2] = 1.4 × 10 -4 M, and [NO2] = 0.95 M.

azamat

Answer:

$K=1.12x10^9$

Explanation:

Hello there!

Unfortunately, the question is not given in the question; however, it is possible for us to compute the equilibrium constant as the problem is providing the concentrations at equilibrium. Thus, we first set up the equilibrium expression as products/reactants:

$K=\frac{[NO_2]^2}{[NO]^2[O_2]}$

Then, we plug in the concentrations at equilibrium to obtain the equilibrium constant as follows:

$K=\frac{(0.95)^2}{(0.0024)^2(0.00014)}\\\\K=1.12x10^9$

In addition, we can infer this is a reaction that predominantly tends to the product (NO2) as K>>>>1.

Best regards!

4 0

3 years ago

Of five different laboratory solutions, the solution with the highest acidity has a pH of

Dominik [7]

Answer:

Explanation: E. 12 because it has the highest acidity rate.

5 0

2 years ago

Whats the difference between a molecule and compound?<br><br> best answer gets branliest :)

Mice21 [21]

molecule- when two or more of the same atoms of an element chemically join together

ex: O2

compund- when the two types of atoms are different

ex: H2O

6 0

3 years ago

A solution is saturated in both nitrogen gas N2 and sodium iodide NaI at 50 degree Celsius. When the solution is cooled to 25 de

xxMikexx [17]

Answer:

b. some sodium iodide will precipitate out of solution

Explanation:

We know that for salts solubility decreases as the temperature of the solution decreases. So, NaI being a salt, its solubility will surely decrease when the temperature is cooled down to 25°C from 50°C.

Thus,the undissolved sodium iodide will precipitate out of the solution.

6 0

3 years ago

(a) Which elements are most likely to form ionic compounds? (b) Which metallic elements are most likely to form cations with dif

elena-s [515]

Answer:

A. Generally ionic compounds are formed metal and non metal elements since they forms opposite charged ions due to difference in their Electronegativity values.

NaCl, MgCl2, Ca(OH)2 etc are ionic compounds.

B. Generally transition elements (D elements) forms cations with different charges or simply they exist in different oxidation states due to availability of empty d orbitals.

Examples are Iron exsits as Fe+2 and Fe+3

Mn exists as Mn+2 , Mn+4, Mn+6 ,Mn+7 etc.

3 0

3 years ago