the change of phase is called liquid to gas
Answer:
c =0.2 J/g.°C
Explanation:
Given data:
Specific heat of material = ?
Mass of sample = 12 g
Heat absorbed = 48 J
Initial temperature = 20°C
Final temperature = 40°C
Solution:
Specific heat capacity:
It is the amount of heat required to raise the temperature of one gram of substance by one degree.
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 40°C -20°C
ΔT = 20°C
48 J = 12 g×c×20°C
48 J =240 g.°C×c
c = 48 J/240 g.°C
c =0.2 J/g.°C
Answer:
Covalent so it is C.
Explanation:
That is water bro.
H2O and water is covalent since they are shared and they are touching in the picture.
Electrons are being shared not transferred and covalent means they are being shared.
Hope this helps!
<span>Yes. a chemical change is when chemical bonds are made or broken. combustion of gasoline (probably octane) makes water and carbon dioxide.</span>