How does the law of conservation of mass apply to the burning a candle?

How does the law of conservation of mass apply to the burning a candle?

A burning candle is an example of matter undergoing a chemical reaction and being changed into new substances. The Law of Conservation of Mass applies as the total mass of the products is equal to the total mass of the reactants. Candle wax is a hydrocarbon that undergoes combustion.

Is mass conserved in burning?

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

What happens to the mass when you burn a candle?

The mass of the candle decreases when it is burnt. This is because some of the wax has reacted to form gas. Melting wax is a physical change: it is still wax but changes state of matter. Burning wax is a chemical change because wax is changed into new substances.

Why do candles lose mass when they burn?

D. When you burn a candle, you end up with less wax after burning than you started with. This is because the wax oxidizes, or burns, in the flame to yield water and carbon dioxide, which dissipate in the air around the candle in a reaction that also yields light and heat.

Why does a candle burning not violate the law of conservation of mass?

Why does burning a candle not violate the law of conservation of mass? Burning wax produces gases of CO2 AND H2O. The smoke makes up for the missing mass due to the burning candle.

Where does the mass of the candle go?

When candles burn, most of their matter goes into the air. The light and heat from a candle comes from the wax burning.

What kind of change happens when a candle burns?

– Chemical change is observed when the wax melts near the flame and converts into wax vapour (change of state is observed), the liquid wax vaporized into vapour form near the flame, and also the chemical energy is converted into light heat energy as we can feel the flame so chemical composition is changed and hence …

Why does a burning candle not violate the law of conservation of mass?

What is the law of conservation of MADD?

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

How does a candle run out?

As the heat of the wax vapor flame melts more of the solid wax it creates more fuel for the flame to burn. The candle will only go out once it runs out of wax or oxygen—or gets blown out. After a candle goes out you can actually see the wax vapor escaping as a stream of white smoke.

How does the law of conservation of mass apply to a burning candle quizlet?

The law of conservation of mass states that during a chemical or physical change, mass cannot be created or destroyed. The other half lost its solid form, but it is still a gas or a liquid (hot candle wax). It’s adding more to the air and it just changed forms; the mass was not destroyed.