Yes
combustion is burning -_-
Yes
a candle won't light because there would be no convection currents, even if there is a plentiful supply of oxygen
A burning candle is an example of an open system because it exchanges both energy (in the form of heat and light) and mass (as the candle wax burns) with its surroundings.
a burning candle, or something that's baking...
Yes, a burning candle is an example of an exothermic reaction. When the candle wax reacts with the oxygen in the air, it produces heat and light energy as byproducts. This release of heat is what makes the candle flame feel warm to the touch.
Candle burning is the process called oxidation. This is, it's the reaction that takes place when a gaseous material reacts with oxygen, the wax needs to change to gaseous state for the reaction to take place.
the products of a burning candle are water vapor and carbon dioxide
No, burning a candle is not reversible. When a candle is burned, the wax is melted and the wick is consumed, resulting in irreversible changes to the candle's structure.
A burning candle produces thermal energy and light.
a burning candle is a light source due to the fire.
A burning candle produces water vapor and carbon dioxide gas.