Answer: Poing Reyes
Explanation: the other options are incorrect as they have been used as astronomical observatory
Hey there !
Mole ratio :
<span>2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
2 moles KMnO4 ----------------- 8 moles H2O
3.45 moles KMnO4 ------------- (moles H2O )
Moles H2O = 3.45 * 8 / 2
Moles H2O = 27.6 / 2
= 13.8 moles of H2O
</span>The option that was given is wrong , <span>You're right.</span>
Answer:
Charlemagne has been called the "Father of Europe" (Pater Europae), as he united most of Western Europe for the first time since the classical era of the Roman Empire and united parts of Europe that had never been under Frankish or Roman rule.
Explanation:
The molar mass or As is 74.9g. Start with 281g multiply by (1mol/74.9g) = 3.75 mols
Put what you don’t want on the bottom (in this case grams) so they the u it’s cancel (if you multiply by grams and the divide by grams they cancel. Ultimately leave what you want on the top ( This case mols) then do the math
Answer:
Boyle´s Law
Explanation:
If we increase the volume of a gas, its pressure will decrease that is why in this question the pressure was decreased to yield the decrease in the number of collisions.
This is Boyle´s law which states that the pressure of a gas is inversely proportional to the volume of its container.
It is expressed mathematically as P₁V₁ = P₂V₂
where the subscripts refer to intial and final conditions.
