Answer:
what grade are you in
Explanation:
do you need help for all?
Answer:
-470.4 kJ/mol
Explanation:
Balanced reactions equations are as follows.
CaC2 (s) + 2H2O (l) â C2H2 (g) + CaOH2 (s) ÎH=â414.kJ
6C2H2 (g) + 3CO2 (g) + 4H2O (g) â 5CH2CHCO2H (g) ÎH=132.kJ
To get the 6 C2H2 we need to multiply first equation by 6
Then we get
6CaC2 (s) + 12H2O (l) â 6C2H2 (g) + 6CaOH2 (s) ÎH=â414.kJ * 6 = -2484 kJ
6C2H2 (g) + 3CO2 (g) + 4H2O (g) â 5CH2CHCO2H (g) ÎH=132.kJ
So the total energy produced = -2484 kJ + 132.0 kJ = -2352 kJ
This amount of energy is given out for the 5 moles of acid
So lets convert it for 1 mol
-2352 kJ * 1 mol / 5 mol = -470.4 kJ/mol
So the delta H of reaction for the formation of the acrylic acid is -470.4 kJ/mol
Answer:
<em>The correct option is A) DNA → RNA → protein</em>
Explanation:
Central Dogma can be described as the process under which the processes of transcription and translation are focused. It is the process by which particular parts of DNA or particular genes make up the specified proteins which are required.
The conversion of DNA into RNA is known as transcription. This process occurs in the nucleus. The conversion of mRNA into proteins is termed as translation. This process occurs in the ribosomes of the cytoplasm.
Answer : Option D) 
Explanation : When a positron is getting absorbed it means it will be 
so, the 
will get converted;
So, the whole reaction will be;
+ ----> .
This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.
Answer:
Volcanoes cool off the earth by emitting heat from its interior. They also add islands and for example, Hawaii was created / is made out of volcanoes. The deposits from volcanoes can also be used for building materials. Volcanic explosions have caused the atmosphere and oceans to form. Volcanic deposits also create land which is fertile.
