Question

A non-count noun cannot be counted.

Many non-count nouns are ideas such as friendship, mathematics, and poetry. other non-count nouns are too numerous to be counted individually and therefore are measured in standard units such as inches, degrees, and pounds.

Examples include cloth, heat, sugar, and gold. others are typically not counted or measured such as hair and dust. non-count nouns do not have a plural form and take a singular verb in sentences.

Answer 1

In high school chemistry, measurements express quantities that consist of a number and a unit, such as counting eggs in a carton for exact numbers. However, quantities like volume involve imprecision and use significant figures for precision. Extremely large quantities like the number of atoms require large numerical units for counting.

Step-by-step explanation:

In chemistry, the concept of measurement is crucial as it allows for the quantification of matter's properties. A quantity combines a number and a unit to describe how much of something exists, and is essential in providing a clear understanding of chemical processes. Counting provides an exact number, such as the eggs in a carton, with each counted item corresponding to a fixed dimension, like 1 foot to 12 inches or 1 inch to 2.54 centimeters. However, measurements derived from methods other than counting, such as determining the volume of a liquid, involve imprecision due to practical limitations. Significant figures are used in measurement to indicate the precision of these quantities. It is also worth mentioning that some quantities are so large, like the number of atoms in a sample, that huge numerical units are needed to count them.