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Questions and Answers
What do the chemical properties of elements depend on?
What do the chemical properties of elements depend on?
- Their relative atomic mass and relative molecular mass
- Their arrangement in the Periodic Table
- Their mass number and isotopes
- Their atomic structure and arrangement of electrons (correct)
How do chemists measure out an amount of a substance?
How do chemists measure out an amount of a substance?
- Using an amount in moles (correct)
- By measuring the mass in grams only
- By measuring the volume in dm3 of a gas only
- By measuring the mass and volume simultaneously
What is the mole a useful quantity for?
What is the mole a useful quantity for?
- Because it measures the volume of a gas
- Because it determines the chemical properties of elements
- Because it represents the mass of an element
- Because one mole of a substance always contains the same number of entities of the substance (correct)
What is linked to the arrangement of electrons in orbitals?
What is linked to the arrangement of electrons in orbitals?
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How can an amount in moles be measured out?
How can an amount in moles be measured out?
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