Podcast
Questions and Answers
Which subatomic particle remains constant for an ion of 40 2+ Ca?
Which subatomic particle remains constant for an ion of 40 2+ Ca?
- Number of protons (correct)
- Number of electrons and neutrons
- Number of neutrons
- Number of electrons
Is stretching copper into thin wire an example of an intensive or extensive property?
Is stretching copper into thin wire an example of an intensive or extensive property?
- Intensive property (correct)
- Both intensive and extensive
- Neither intensive nor extensive
- Extensive property
Which of the following is an example of a physical change?
Which of the following is an example of a physical change?
- Baking a cake
- Boiling water (correct)
- Digesting food in your stomach
- Tarnishing of silver
Identify the type of mixture that milk belongs to:
Identify the type of mixture that milk belongs to:
What property is associated with one mole of carbon having a mass of 12.01 grams?
What property is associated with one mole of carbon having a mass of 12.01 grams?
Which subatomic particle is located outside the nucleus of an atom?
Which subatomic particle is located outside the nucleus of an atom?
What is the electrical charge of a cation?
What is the electrical charge of a cation?
Which particle has a mass closest to 1 amu?
Which particle has a mass closest to 1 amu?
What type of ions contain more electrons than protons?
What type of ions contain more electrons than protons?
How do you find out the number of protons in an atom?
How do you find out the number of protons in an atom?
Which type of ion is derived from a single atom?
Which type of ion is derived from a single atom?
Which type of change is demonstrated when water boils at 100 oC?
Which type of change is demonstrated when water boils at 100 oC?
What type of change occurs when vinegar reacts with baking soda?
What type of change occurs when vinegar reacts with baking soda?
In which category do pure substances belong?
In which category do pure substances belong?
What classification of matter comprises more than one substance in varying proportions?
What classification of matter comprises more than one substance in varying proportions?
Which substance is an example of an element?
Which substance is an example of an element?
What type of change is observed when iron rusts in a damp environment?
What type of change is observed when iron rusts in a damp environment?
What is the significance of the nucleus in an atom?
What is the significance of the nucleus in an atom?
What is the electric charge of one proton?
What is the electric charge of one proton?
What does the atomic number of an atom represent?
What does the atomic number of an atom represent?
How do protons and electrons contribute to the overall charge neutrality of an atom?
How do protons and electrons contribute to the overall charge neutrality of an atom?
What is an isotope?
What is an isotope?
Why do isotopes of an element generally have similar chemical properties?
Why do isotopes of an element generally have similar chemical properties?
What are the four different states or phases in which matter exists?
What are the four different states or phases in which matter exists?
Which type of property depends on the amount of matter?
Which type of property depends on the amount of matter?
What kind of change involves only a change in physical state and not in the identity of substances?
What kind of change involves only a change in physical state and not in the identity of substances?
Which property involves a change in the identity of the substance?
Which property involves a change in the identity of the substance?
Which property of matter refers to its ability to burn?
Which property of matter refers to its ability to burn?
What property of matter describes its resistance to flow?
What property of matter describes its resistance to flow?
