Answer:
Mass of sodium react = 8.63 g
Explanation:
Given data:
Mass of sodium hydroxide produced = 15 g
Mass of sodium react = ?
Solution:
Chemical equation:
2Na + 2H₂O → H₂ + 2NaOH
Number of moles of sodium hydroxide:
Number of moles = mass/ molar mass
Number of moles = 15 g/ 40 g/mol
Number of moles = 0.375 mol
Now we will compare the moles of Sodium and sodium hydroxide.
NaOH : Na
2 : 2
0.375 : 0.375
Mass of Sodium:
Mass = number of moles × molar mass
Mass = 0.375 mol× 23 g/mol
Mass = 8.63 g
Answer:
I <em>believe</em> it is Avogadro's number: 6.022 × 10²³
Explanation:
One mole of a substance is equal to 6.022 × 10²³ units of that substance
A pi bond... hope this helps!!!!!
The group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from <u>Alkenes</u>
<h3>What are organic compounds?</h3>
Organic compounds are compounds which contains carbon and hydrogen
Some few classes or organic compounds or hydrocarbons are as follows:
- Alkanes
- Alkenes
- Alkynes
- Alkanols
- Alkanoic acid
- Ketones
- Esters
So therefore, the group of unsaturated hydrocarbons which 2 carbons are double bonded together, with H bonded to the left, and C H 2 bonded below left, above right, and below right is derived from <u>Alkenes</u>
Learn more about organic compounds:
brainly.com/question/1594044
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