Consider the following intermediate chemical equations. CH2(g) → C(s)+2H2(g)
CCI.(9) —C(s)+2012 (9)
H2(g)+Cl2(g) → 2HCl(g)
AH, = 74.6kJ
AH2 = 95.7kJ
AH, --92.3kJ
What is the enthalpy of the overall chemical reaction CH4(g)+4C12(g) → CC1,(g)+4HCl(g)?
0-205.7 kJ
0-113.4 kJ
-14.3 kJ
0 78.0 kJ

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What is a metal replacement reaction

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.