Podcast
Questions and Answers
What was the element created by Emilio Serge and Carlo Perrier in 1937?
What was the element created by Emilio Serge and Carlo Perrier in 1937?
- Technetium (correct)
- Molybdenum
- Hydrogen
- Deuterons
What is the definition of activation energy?
What is the definition of activation energy?
- The measure of the hotness or coldness of a substance
- The measure of the change in the concentration of the reactants or products
- The ability of water molecules to move against gravity
- The minimum amount of energy needed for colliding particles to react (correct)
What is the definition of boiling?
What is the definition of boiling?
- The excessive consumption of carbohydrates which is converted into polysaccharide that is stored in the liver and in the muscles
- The ability of an atom in a molecule to attract shared electrons
- The strongest among the intermolecular forces
- When the vapour pressure of a liquid becomes equal to the atmospheric pressure (correct)
What is the definition of capillary action?
What is the definition of capillary action?
What is the definition of an enzyme?
What is the definition of an enzyme?
What is the definition of glycogen?
What is the definition of glycogen?
What is the measure of how fast or slow a chemical reaction happens?
What is the measure of how fast or slow a chemical reaction happens?
What is the substance formed as a result of a chemical reaction called?
What is the substance formed as a result of a chemical reaction called?
When particles in a substance collide and have enough energy, what can occur?
When particles in a substance collide and have enough energy, what can occur?
How can the rate of a chemical reaction be slowed down?
How can the rate of a chemical reaction be slowed down?
When do tetrahedral molecules occur?
When do tetrahedral molecules occur?
What is the range of electronegativity difference for a polar covalent bond?
What is the range of electronegativity difference for a polar covalent bond?
Which of the following is NOT a type of lipid?
Which of the following is NOT a type of lipid?
Which of the following is NOT an example of an intermolecular force?
Which of the following is NOT an example of an intermolecular force?
What is the effect of a change in particle size on the rate of a chemical reaction?
What is the effect of a change in particle size on the rate of a chemical reaction?
In the main sequence star, what is produced from the fusion of Hydrogen to Helium?
In the main sequence star, what is produced from the fusion of Hydrogen to Helium?
What is the primary function of myoglobin in muscles?
What is the primary function of myoglobin in muscles?
