Water is given off when fuels are burnt in oxygen
water
The chemical energy was stored in the fossil fuel millions of years ago when the Sun's energy was used in photosynthesis to separate carbon and oxygen atoms from atmospheric carbon dioxide. The carbon was used by the plants to form tissues while the oxygen was released into the air. It's this energy that is released by the formation of carbon-oxygen atomic bonds as carbon dioxide is generated when the fuel is burned.
The heat is produced by the formation of chemical bonds between carbon and oxygen, and between hydrogen and oxygen. So CO2 and water are the necessary products when fossil fuel is burned, without which there would be no heat.
YES. The available amount of oxygen in air regulates the candles burn. The oxygen burns with the paraffin wax. Both are consumed. A mix of more oxygen will burn faster and hotter. Rapid oxydation is dangerous.
That's a very important question. To be very technical, the rocket motor burns without "air" ... outside the atmosphere ... because it takes its own oxygen along with it. There's always a chemical called an "oxidizer" somewhere in the rocket, either mixed into the fuel, or else in a separate tank.
The mass of the rocket decreases as fuel burns.
yes
Burning release water, carbon dioxide and heat.
It burns with oxygen. That's all.
Oxygen
The oxygen is carried in tanks as a liquid, just as the fuel is.
Fire burns with the fire triangle. Heat, oxygen, and fuel (wood or gasoline).
oxygen, fuel, heat
Oxygen in the air reacts with the fuel in a process called combustion to release energy
Yes. If a rocket fires its rockets to manoeuvre, then it burns fuel. Fuel is defined as anything that burns; gases and solid propellent. In space, the fuel has to have oxygen added or an oxidizer to sustain the burn.
Three things are needed for fire to burn, often referred to as the triangle of fire. Oxygen, heat and fuel, it is only the fuel that burns, the oxygen and heat together cause the fuel to burn.
Fire burns with the fire triangle. Heat, oxygen, and fuel (wood or gasoline).
Water is produced when the fuel burns in the engine. The carbon in the fuel burns with oxygen to form carbon dioxide, while hydrogen in the fuel burns with more oxygen to form water. You only see it dripping out when the exhaust pipe is cold, because after it's warmed up the water comes out as steam and is invisible.