proteins
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AnswersOn average, 60 percent of your body weight
Percent of an objects mass is expressed in terms of its weight. Percent of an objects volume is expressed in terms of its size.
One percent by weight. Alcohol has a density of less than water, so 1 g of alcohol is more than 1 mL.
water
Water
water
proteins
Minerals
The weight will depend on how much of the substance there is.
Minerals
The Brain!
H2O or Water
Water is the single most abundant chemical substance in the body, making up about 60% of an adult's total body weight.
Water.water
Weighing by difference is necessary to accurately determine the amount of the substance being measured, as it accounts for any impurities or moisture that may be present. By subtracting the initial weight of the container from the final weight of the container with the substance, we obtain the weight of the substance itself. This method ensures the measurement is more precise and reliable.