Podcast
Questions and Answers
What happens when hydrogen gas and oxygen gas are mixed together without a spark?
What happens when hydrogen gas and oxygen gas are mixed together without a spark?
Nothing much happens.
What is stoichiometry concerned with when looking at a chemical equation?
What is stoichiometry concerned with when looking at a chemical equation?
The number of atoms in the equation and the balance of substances needed for the reaction.
How do chemists measure heat, and what are heat sources and heat sinks?
How do chemists measure heat, and what are heat sources and heat sinks?
Chemists measure heat in units called Joules. Heat sources have higher temperatures than the surrounding area, while heat sinks have lower temperatures.
Where is the energy stored when you burn a piece of wood, and how is it related to the Sun?
Where is the energy stored when you burn a piece of wood, and how is it related to the Sun?
What are the factors that affect the overall speed of a chemical reaction?
What are the factors that affect the overall speed of a chemical reaction?
What are the different measures of reaction rates that scientists like to know?
What are the different measures of reaction rates that scientists like to know?
What does stoichiometry study in chemistry and what does it help determine?
What does stoichiometry study in chemistry and what does it help determine?
What is the rate of a reaction?
What is the rate of a reaction?
Explain the collision theory in relation to rates of reaction.
Explain the collision theory in relation to rates of reaction.
How does the concentration of essential elements or compounds affect the rate of a reaction?
How does the concentration of essential elements or compounds affect the rate of a reaction?
