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GalinKa [24]
3 years ago
14

Which is not an observation?

Chemistry
2 answers:
Viefleur [7K]3 years ago
8 0
B. The mouse is hungry , because you dont really know that only the mouse does
uysha [10]3 years ago
6 0
The mouse is hungry you can't see this.
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a compound contain 8.57g of carbon and 1.43g of hydrogen. The relative formula mass is 70 calculate the empirical formula of the
yanalaym [24]

Answer:

Empirical formula: CH2

Molecular formula: C5H10

5 0
3 years ago
Hydrogen bond notes​
Andrews [41]

Answer:

a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Explanation:

A hydrogen bond is a partial intermolecular bonding interaction between a lone pair on an electron rich donor atom, particularly the second-row elements nitrogen, oxygen, or fluorine, and the antibonding molecular orbital of a bond between hydrogen and a more electronegative atom or group.

4 0
4 years ago
What is the pH of a buffer solution when the concentrations of both buffer components (the weak acid and its conjugate base) are
Ksivusya [100]

Explanation:

Considering the Henderson- Hasselbalch equation for the calculation of the pH of the buffer solution as:

pH=pKa+log[base]/[acid]

When the the concentrations of both buffer components (the weak acid and its conjugate base) are equal:

[base] = [acid]

So, pH=pKa+log1 = pKa

<u>pH is equal to pKa of weak acid of buffer system .</u>

When buffer contains more of weak acid than conjugate base:

[base] < [acid]

log [base]/[acid] = Negative,

So,

<u>When more of acid component is present, the pH is more acidic. (It decreases)</u>

When buffer contains more of conjugate base than weak acid:

[base] > [acid]

log [base]/[acid] = Positive,

So,

<u>When more of acid component is present, the pH is more acidic. (It increases)</u>

8 0
3 years ago
What is the hydro carbon?
jeka57 [31]
Hydrocarbon, to my knowledge is an organic compound consisting mainly of hydrogen and carbon. It is mainly found in petroleum and natural gas. Hope this helps!
5 0
3 years ago
Read 2 more answers
The "d" subshell can hold a maximum of ________ electrons.
Verizon [17]
The d subshell has 5 orbitals (with each being able to hold two electrons.  As such, the d orbital can hold a maximum of 10 electrons.

<span>The "d" subshell can hold a maximum of _TEN_ electrons.</span>
5 0
3 years ago
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