9.The heat produced by the complete combustion of 2.5 kg of a fuel is 1,50,000 kJ. The calorific value of the fuel is . Single choice. Immersive Reader (2 Points)
60,000 Kg/ KJ
60,000 KJ/Kg
6000 KJ/Kg
3,75,000 KJ/Kg
Please answer

How do forces between particles in gases compare to forces in the other states of matter? o a. the forces in gases are stronger than forces in solids but weaker than forces in liquids. o b. the forces in gases are weaker than forces in solids but stronger than forces in liquids. o c. the forces in gases are weaker than forces in solids and liquids. o d. the forces in gases are stronger than forces in solids and liquids. submit

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.