Answer:
Chemists can determine the number of atoms in an amount of matter using a variety of techniques, such as mass spectrometry, X-ray diffraction, and atomic absorption spectroscopy. These techniques allow chemists to measure the mass and volume of a sample of matter and to analyze its chemical composition.
To determine the number of paper clips in a beaker without counting them by hand, you could use a balance to measure the mass of the beaker and the paper clips. You could then use the mass of a single paper clip to calculate the total number of paper clips in the beaker. Alternatively, you could measure the volume of the beaker and the paper clips and use the density of paper to calculate the total number of paper clips in the beaker.
Step-by-step explanation: