The answer is B. Sugar is made of carbon, hydrogen,and oxygen atoms. When heated, these elements react to the fire to turn into a liquid. The heat causes the sugar's atoms to combine with the oxygen in the air, forming new groups of atoms. Energy is released in the form of smoke. Let me know if it's right :)
The three main types of lipids are triglycerides, steroids and phospholipids
The kinetic energy of a moving object is calculated through the equation,
KE = 0.5mv²
where KE is kinetic energy, m is mass, and v is the velocity. Substituting the known values in the problem above,
KE = 0.5(55 kg)(16 m/s)²
KE = 7,040 J
Thus, the kinetic energy of the skydiver is approximately equal to 7 kJ.
The answer is A.( The reaction is endothermic) I had it on my test and got it right
Answer:
1.Products
2.Reactants
3.Activation
4.Chemical potential energy
5.Energy
6.Activated
7.Complex
8.Progress of reaction
9.Enthalpy of Reaction
