Luster is the correct answer.
Answer:
151.1J
Explanation:
Given parameters:
Mass of iron = 6.21g
Initial temperature of iron = 25°C
Final temperature of iron = 79.8°C
Unknown:
Amount of heat = ?
Solution:
The amount of heat require to cause this temperature can be determined using the expression below;
H = m c (T₂ - T₁)
H is the amount of heat
m is the mass
c is the specific heat capacity
T is the temperature
Specific heat capacity of iron 0.444J/g°C
Insert the parameters and solve;
H = 6.21 x 0.444 x (79.8 - 25)
H = 151.1J
Noble gases having col:18
so the valence shell is D.8
Answer:
Explanation:
A chemical formula is representation of a compound. Compounds are made up of two or more elements combining together.
The chemical formula of any compound is a representation which shows the elements therein and the mole relationship expressed as subscripts.
Elements in HCl - Hydrogen (H)
Chlorine (Cl)
Here 1 mole of hydrogen chloride molecule consists of 1 mole of chlorine atoms and 1 mole of hydrogen atoms.
