Chemical Formulas Overview
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Questions and Answers

What does a chemical formula indicate?

  • The number of atoms of each element present in a chemical compound (correct)
  • The physical state of the chemical compound
  • The taste of the chemical compound
  • The color of the chemical compound

In the chemical formula H2O, what does the subscript '2' represent?

  • Number of helium atoms
  • Number of hydrogen atoms (correct)
  • Number of oxygen atoms
  • Number of nitrogen atoms

What is the difference between a chemical compound and a molecule?

  • Chemical compounds always contain atoms from the same element, while molecules don't
  • Molecules always contain atoms from at least two different elements, while chemical compounds don't
  • There is no difference between chemical compounds and molecules
  • Molecules may be composed of atoms from the same element, while chemical compounds always contain atoms from different elements (correct)

What is diatomic hydrogen composed of?

<p>Two hydrogen atoms bonded together (C)</p> Signup and view all the answers

How many elements are present in a chemical compound?

<p>At least two different elements (C)</p> Signup and view all the answers

What type of chemical formula is written as the simplest ratio of atoms from corresponding elements present in a compound?

<p>Empirical formula (A)</p> Signup and view all the answers

Which chemical formula type typically omits the line segments symbolizing bonds between atoms?

<p>Condensed formula (A)</p> Signup and view all the answers

Which type of chemical formula uses symbols of elements and numerical subscripts to indicate the number of each element in a compound?

<p>Molecular formula (C)</p> Signup and view all the answers

What does the term 'true formula' often refer to when discussing chemical formulas?

<p>Molecular formula (B)</p> Signup and view all the answers

In a structural chemical formula, what does the drawing of line segments represent?

<p>Type of chemical bonds in the compound (B)</p> Signup and view all the answers

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