Answer:
8.87 * 10^23 molecules of Ne
Explanation:
STP means standard temperature and pressure which is 0 degree Celsius and 1 atm. There's a law that says at STP 1 mole of any gas at occupies 22.4 liters of volume. We are gonna use this to do our conversion.
33.0 L Ne * 1mol Ne/22.4L Ne = 1.47321428571 mol Ne (this is moles of Neon)
Now we know avogadro number says there's 6.022*10^23 molecules in 1 mole of anything so we use this to convert the previously calculated moles of Neon to moleculues.
1.47321428571 mol Ne * 6.022*10^23 molecules/1mol Ne = 8.87 * 10^23 molecules of Ne
Answer:
A harmless nuclear fallout
Explanation:
just did this
The reaction of sodium bromide with chlorine gas is Cl₂(aq) + 2Na + 2Br? 2Na + 2Cl⁻ + Br²(aq).
<h3>What is sodium bromide?</h3>
Sodium bromide is an inorganic compound, white, crystalline with high melting point.
The reaction between halogens is redox reaction
Oxidation – 2Br⁻ ? Br₂ + 2e⁻ loss of electron.
Reduction – Cl₂ + 2e⁻ ? 2Cl⁻ gains of electron.
Thus, the correct option is Cl₂(aq) + 2Na + 2Br? 2Na + 2Cl⁻ + Br²(aq).
Learn more about sodium bromide
brainly.com/question/15409724
#SPJ4
The substance with the higher freezing point depression is CaCl2.
<h3>What is water's freezing point?</h3>
Water freezes at 0° C in normal conditions but once water is mixed with other substances this temperature can change.
<h3>How does the freezing point change?</h3>
As previously mentioned, the freezing point changes according to the substance water is mixed with, here are the changes for the listed substances:
- Water with NaCl: -3.72 °C
- Water with CaCl2: -5.58 °C
- Water with C12H22O11 (Sucrose): -0.68 °C
- Pure water: No changes
Based on this, the one that has the greatest freezing point depression is CaCl2.
Learn more about freezing in: brainly.com/question/14131507