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What else can I help you with?
Is gasoline being evaporated a chemical change?
It's both a chemical change and a physical change. Gasoline doesn't explode. In order for there to be an explosion, the combustion must happen in a sealed container. The gasoline combusts with oxygen in the atmosphere to form carbon dioxide, water vapor, nitrous oxides, and soot, along with a lot of heat. The liquid gasoline produces mostly vaporous products, and in a sealed container, will generate very high pressures. The high pressure will cause the container to explode.
If gasoline poured into a tank an chemical change?
Gasoline being poured into a tank is not a chemical change.
Is gasoline being burned a chemical change?
yes
Why is a chemical reaction called a chemical reaction?
Because this reaction involve chemical compounds as reactants and products and the chemical structure and composition being changed.
What is the chemical that helps a chemical reaction without being consumed during a reaction?
ENzyme
Endothermic means that heat has evaporated?
in an endothermic reaction the reacting substances are releasing energy, making them feel cold. i don't know what you mean by evaporating heat, but you cannot create or destroy energy if that helps.
Is carbon dioxide being produced by the combustion of gasoline in an automobile engine a physical or chemical change?
When the gasoline burns, it forms water and various gasses, so it is a chemical change.
What chemical reactions the type of chemicals bonds being broken are?
This is a chemical reaction.
What is the reaction for pyrolysis gasoline hydrogenation?
In the first stage reactor, di-olefins are being hydrogenated. Cheng et al. (1986) studied the kinetics of pyrolysis gasoline hydrogenation over the supported palladium catalyst. The hydrogenation reaction is proposed as the following consecutive way: Conjugated diene -----> monoolefin.......> alkane
What are enzymes called because they affect the speed of chemical reaction without being consumed?
enzymes are never consumed in a chemical reaction, therefore the answer to your question is that enzymes that affect the speed of a chemical reaction without being consumed are indeed called enzymes.
Is concrete setting a physical or chemical change?
It would be both. It's a physical change because it is changing state and a chemical change because water is being evaporated.
Is matter being lost when burning a log?
In a chemical reaction the mass of reactants is equal to the mass of products; burning is a chemical reaction.
