Steel is an alloy and consists of more than one element (mainly iron and carbon), therefore steel is a mixture.
Answer:
Option D. 4.02 kJ
Explanation:
A simple calorimetry problem
Q = m . C . ΔT
ΔT = Final T° - Initial T°
C = Specific heat capacity
m = mass
Let's replace the data
Q = 125 g . 2.42 J/g∘C . (34.8°C -21.5 °C)
Q= 4023.25 J
We must convert the answer to kJ
4023.25 J . 1kJ /1000 =4.02kJ
The density of ice is 0.9167 g/cm<span>3</span>
Answer:
there are no examples but 1 example is H2O which has 2 elements combining a compound.
Explanation:
It is the boilimg point now aa
