For the answer to the question above, t<span>he energy that is required to break all the carbon-hydrogen bonds in methane is 891 kJ/mol. In 0.1 mol of methane, you would need 89.1 kJ.
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NaOH is an example of an ionic crystal.
Option a
<h3><u>Explanation:</u></h3>
Sodium Hydroxide is a "white solid ionic compound" consisting of sodium cations Na+ and hydroxide anions . If we look at the crystal structure of NaOH, we can see that it has the combinations of ionic and covalent bonds. The bond that is shared between Oxygen ( O ) and Hydrogen ( H ) is the covalent bond.
The Sodium ( Na ) is bonded with an "ionic bond to the hydroxide part of the compound". NaOH is an ionic solid because it is formed by the combinations of metal and non-metal. When the crystal of NaOH is dissolved in water it dissociates into Na+ ions (which is ionic in nature) and ions which bonds ionically to the other compounds.
That protons are positive charges and are equal to the amount of neutrons.
Answer:
523.66g or 524g for proper sig figs
Explanation:
First you have to get the molar mass of MgCl2 which is 95.211g/mol. You can calculate this through added the atomic mass of one magesium atom and 2 chloride atoms. You then multiply the 5.50mol by the 95.211g/mol and that cancels out the unit of moles leaving only grams.