Covalent shares energy with metals and metals
Ionic bonds energy with nonmetals and metals
Answer:
The answer is 16
Explanation:
It needs to be hald of the medium so devide the 2 numbers
Answer:
Isotopes are atoms of an element with the normal number of protons and electrons, but different numbers of neutrons. Isotopes have the same atomic number, but different mass numbers. GOOD LESSONS♡
Answer : The molar heat of solution of KBr is 19.9 kJ/mol
Explanation :
Mass of KBr = 7.00 g
Molar mass of KBr = 119 g/mole
Heat capacity = 2.72 kJ/K
Change in temperature = 0.430 K
First we have to calculate the moles of KBr.
Now we have to calculate the heat of the reaction.
where,
q = amount of heat = ?
= heat capacity = 
= change in temperature = 0.430 K
Now put all the given values in the above formula, we get:
Now we have to calculate the molar heat of solution of KBr.
where,
n = number of moles of KBr
Therefore, the molar heat of solution of KBr is 19.9 kJ/mol
<h2>Answer: 0.00925 mol
</h2>
Explanation:
Moles = # of molecules ÷ Avogadro's Number
= (5.57 × 10²¹ molecules) ÷ (6.022 × 10²³ molecules/mol)
= 0.00925 mol
<h3>∴ the 5.57 x 10²¹ molecules of carbon dioxide ≡ 0.00925 mol</h3>
