Answer:
it depends upon the material used to make the brick
Answer : The volume of required is, 60 L
Explanation :
First we have to calculate the moles of
Now we have to calculate the moles of
The balanced chemical reaction will be:
From the balanced chemical reaction we conclude that,
As, 1 mole of completely react with 2 moles of
So, 0.3 mole of completely react with moles of
Now we have to calculate the volume of required.
Therefore, the volume of required is, 60 L
Answer:
A)Putting things in order from youngest to oldest.
Explanation:
Relative dating entails the placing of events in a sequence of their occurrence based on relationships between earth materials. In order to date a rock using the techniques of relative dating, some principles are usually followed. Some of the principles of relative dating are:
- Principle of superposition
- Principle of original horizontality
- Principle of lateral continuity
- Cross-cutting principle
- Principle of fossil and fauna succession.
All of these principles helps establish succinct relationships between rock layers and what they contain. Fossils which are the preserved remains of organisms in rocks are very essential in relative dating of rocks.
Putting things in order from the youngest to the oldest is relative dating. Other options are categorized as absolute dating. In absolute dating, an exact date is affixed to a geologic event.
Δ H reaction = q / n where q: amount of heat released and n is number of moles of substance.
q = m . C . ΔT where:
m = mass of substance (g)
C = Specific heat capacity (4.18)
ΔT = change in temperature = 24.25 - 23.16 = 1.09
q = 1000 x 4.18 x 1.09 = 4556 J = 4.556 kJ
number of moles (n) = Molarity (M) x Volume (L)
= 0.185 M x 0.07 L = 0.01295 mole
Δ H = q / n = - (4.556 kJ / 0.01295 mole) = -351.8 kJ / mol
Note: it is exothermic reaction (-ve sign) i.e. temperature is raised
Alpha is the -OH group at the anomeric position is down. beta is up
a. alpha
b. beta
c. beta
d. alpha
to draw the other anomer, just flip the OH at the anomeric position