Answer:
Each carbon atom is covalently bonded to 4 other carbon atoms in diamond. A large amount of energy is required to split these atoms apart. This is because of the fact that covalent bonds are strong.
Alloys are used much more than pure metals because they are generally stronger and less likely to react with air or water.
This is an incomplete question, here is a complete question.
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 °C. What is the vapor pressure of ethanol at 14 °C?
Answer : The vapor pressure of ethanol at
is 
Explanation :
The Clausius- Clapeyron equation is :

where,
= vapor pressure of ethanol at
= ?
= vapor pressure of ethanol at normal boiling point = 1 atm
= temperature of ethanol = 
= normal boiling point of ethanol = 
= heat of vaporization = 38.56 kJ/mole = 38560 J/mole
R = universal constant = 8.314 J/K.mole
Now put all the given values in the above formula, we get:


Hence, the vapor pressure of ethanol at
is 
Answer:
i think its a
Explanation:
nucleic acids are dna and rna
amino acids are the 4 nuecleotides in dna or rna
Answer:
the answer is 3(decay) and
the second isa 1(alfa particle) has a mass of equal to helium nucleus