Answer:
Explanation:
Filtration followed by evaporation:
To separate the mixture of sand and sugar, it is best to use the separation technique of filtration then evaporation.
Pour the water into the mixture. The sugar will dissolve with time in the water. Sand is made up of quartz and does not dissolve in water.
After the dissolution, filter the solution to separate the sand using a filter paper.
Dry the sand thereafter then proceed to evaporate the sugar with water solution. Evaporation will turn water into vapor and the sugar crystals will be left behind.
solubility of the solvent,
molecular size of the solute
Answer:
The final pressure of the carbon dioxide gas will 11.84 atm.
Explanation:
Moles of carbonic acid = 
According to reaction, 1 mol of carbonic acid gives 1 mole of carbon dioxide gas.
Then 0.9677 moles of carbonic acid will give :
of carbon dioxide
Moles of carbon dioxide gas = n = 0.09677 mol
Volume of soda bottle = 
Pressure of the carbon dioxide gas = P
Temperature of the carbon dioxide gas = T = 298 K
(ideal gas law)
The final pressure of the carbon dioxide gas will 11.84 atm.
Answer:
Sorry I would bu that looks so hard
Explanation:
Answer:
Model B
Explanation:
Model A shows that light has been reflected, whereas Model B shows the light has been refracted. Light will be refracted as the light enters a more dense medium (glass), from a less dense medium (air).
This website has a really useful, thorough explanation for why this occurs:
(Check the explanation under the heading 'Explaining refraction - Higher')
https://www.bbc.co.uk/bitesize/guides/zw42ng8/revision/2
Hope this helps!
