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Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size ; mole fraction (percentage by moles , mol%) and volume fraction ...
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry and is widely used in physics and other sciences.
A bottle of colored liquid labelled as a love potion A collection of vials labelled as potions. A potion is a liquid "that contains medicine, poison, or something that is supposed to have magic powers." [1] It derives from the Latin word potio which refers to a drink or the act of drinking. [2]
DNA sequence of length 4.6 Mbp, the weight of the E. coli genome [27] 10 −17 ~1 × 10 −17 kg Vaccinia virus, a large virus [28] 1.1 × 10 −17 kg Mass equivalent of 1 joule [29] 10 −16: 3 × 10 −16 kg Prochlorococcus cyanobacteria, the smallest (and possibly most plentiful) [30] photosynthetic organism on Earth [31] [32] 10 −15 ...
Included for each food is its weight in grams, its calories, and (also in grams,) the amount of protein, carbohydrates, dietary fiber, fat, and saturated fat. [1] As foods vary by brands and stores, the figures should only be considered estimates, with more exact figures often included on product labels.
A sample nutrition facts label, with instructions from the U.S. Food and Drug Administration [1] Nutrition facts placement for two Indonesian cartons of milk The nutrition facts label (also known as the nutrition information panel, and other slight variations [which?]) is a label required on most packaged food in many countries, showing what nutrients and other ingredients (to limit and get ...
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The United States measures weight in pounds (avoirdupois), while recipes in the UK tend to include both imperial and metric measures, following the advice of the Guild of Food Writers. [6] The United States also uses volume measures based on cooking utensils and pre-metric measures.