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3 years ago

Balance this chemical equation with an explanation please: CH3CH2OH + O2 = CO2 + H2O

Chemistry

1 answer:

STALIN [3.7K]3 years ago

3 0

CH3CH2OH + 3O2 = 2CO2 + 3H2O

Basically you do trial and error on both sides so they can be equal

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3 years ago

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When ionic compounds are added to water, they dissociate or break apart into ions. In the case of table salt, salt added to wate

Lostsunrise [7]

Answer:

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Explanation:

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2 years ago

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vova2212 [387]

STEM is an acronym meaning

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3 years ago

How are isotopes of the same chemical element alike? How are they different?

Stella [2.4K]

Answer: The atomic mass of these species is different and atomic number remains same.

Explanation:

Isotopes are the chemical species of the same element having different number of neutrons.

Atomic number is equal to the number of protons or electrons present in that element.

Atomic Number = Number of electrons = Number of protons

Atomic mass is defined as the sum of number of protons and neutrons contained in an atom.

Atomic Mass = Number of protons + Number of neutrons

For isotopes, as the number of neutrons differ, the atomic mass also differs.

For Example: Carbon has 3 naturally occurring isotopes: $_6^{12}\textrm{C},_6^{13}\textrm{C}\text{ and }_6^{14}\textrm{C}$ . The atomic number remains the same but atomic mass differs.

Hence, for isotopes, the atomic mass of these species is different and atomic number remains same.

6 0

3 years ago

Question 1:

Alona [7]

Question 1:

(a) Sulfurous acid: H2SO3

Sulfuric acid: H2SO4

(b) Nitrous acid: H2NO2

Nitric acid: H2NO3

Question 2:

To calculate the pH, based on concentration of H+ ions, there is one formula:

$ph = - log_{10}(c(h + ))$

So the pH of this solution is

$- log_{10}( {10}^{ - 9} ) = 9$

(the solution is basic).

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3 years ago