number of particles.
number of atoms.
has 3 number of atoms. So, 1 mole of water contains 
number of atoms.consider the substances below.
• 1 mol of beryllium
• 1 mol of salt
• 1 mol of water<...
consider the substances below.
• 1 mol of beryllium
• 1 mol of salt
• 1 mol of water
• 1 mol of hydrogen
which statement is true about these substances? 1) they have exactly the same mass.2) they have different numbers of particles.3) they have the same number of atoms.4) they have different masses.
Answers: 2
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