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pychu [463]
3 years ago
14

The number of molecules in 1.0 mole of H2O is the same as in one mole of O2.

Chemistry
2 answers:
zaharov [31]3 years ago
8 0
True. A mole of anything has the same amount of molecules. 1 mole = 6.022 x 1023 molecules 
Mrrafil [7]3 years ago
7 0

Answer:

true

Explanation:

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an element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element
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Hey there!

n = A - Z

n =  20 - 10

n = 10 
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3 years ago
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Answer 3 & 4
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Answer:

The answer  for 2-hexene is that the structure should have 6 carbon with a double bond beginning on the 2nd carbon atom.

The answer for 1-pentyne is that the structure should have 5 carbon with triple bond beginning on the 1st carbon atom.

Explanation:

<u>2-Hexene</u>

The structural formula for 2-hexene will have 6 carbons because the nomenclature has a -hex prefix, which stands for 6 carbons.

The -ene suffix of the nomenclature means that the organic compound is an alkene. Alkenes are hydrocarbons that contain double covalent bond and  have the suffix -ene.

The double bond is on the 2 carbon atom because the nomenclature states that the double bond will be on the 2 carbon atom.

<u>1-Pentyne</u>

The structure will have 5 carbons since the -pent prefix means 5 carbons.

The structure has a triple bond because the -yne suffix means that the structure is an alkyne. An alkyne is a hydrocarbon with triple covalent bonds.

Also, the position of the triple bond is known because the nomenclature of the alkyne states that the triple bond is on the 1st carbon.  

5 0
3 years ago
Consider the titration of 25.0 mL of 0.340 M HCl with 0.160 M NaOH. What volume of NaOH is required to reach the equivalence poi
denis23 [38]

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53.1 mL NaOH

Explanation:

3 0
3 years ago
__ bonding exists within the same molecule, and _____________ forces exist between different molecules. Hydrogen, ionic Ionic, c
olganol [36]
Answers are Intermolecular and London dispersion
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Which of the following is an example of chemical energy being used?
AURORKA [14]

Answer:

(A) Battery in a flashlight

Explanation:

Because the chemicals in the battery are being converted to light and heat energy from the bulb!

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