Percentage yield = (experimental yield /theoretical yield) x 100 = (280/300)x 100 = 93.34%
Answer:
Explanation:
Earth is considered a closed system because only energy, not matter, is exchanged. A closed system like Earth can be easily represented by a sealed jar. When the lid is sealed, matter like air or water can neither enter nor exit the jar. If you placed that same jar in a 100-degree oven, the air inside the jar would eventually increase in temperature to 100 degrees, representing an exchange of energy known as heat.
intestinal flora
A modest level of ethanol enters the human circulation naturally from <u>intestinal flora,</u> equivalent to a fraction of a drink per day.
<h3>What is intestinal flora?</h3>
- inside the intestines are bacteria and other living things.
- They aid in food digestion.
- Intestinal flora produces vitamins like biotin and vitamin K. Also known as intestinal microflora, microflora, and gut flora.
<h3>Are intestinal flora good?</h3>
- Humans have 100 trillion viable bacteria in their intestines.
- The intestinal flora is the collective name for these living bacteria, which account for 30% of the faeces bulk.
- The intestinal flora contains both useful and dangerous microbes.
- They are evenly distributed and the good bacteria take center stage in healthy persons.
<h3>What purpose does the gut flora serve?</h3>
Intestinal microflora primarily serves two purposes:
- (1) metabolic processes that result in the absorption of nutrients and energy; and
- (2) host defense against invasion by alien microbes.
The immune system's development and balance depend heavily on intestinal microorganisms.
To learn more about intestinal flora visit:
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A set of attainable values for some physical quantity such as energy or wavelength
Answer:
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" 2 Li + Br2<span> ----> 2 LiBr " .
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