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Salsk061 [2.6K]
3 years ago
10

Often, if an investigator needs to add a very small amount of a reagent to a chemical reaction, they will first do a serial dilu

tion as opposed to measuring the chemical directly. Why
Biology
1 answer:
Brrunno [24]3 years ago
5 0

Answer:

The chemical reagents may be defined as the substance necessary to carry out the chemical reactions. The reagents can be consumed fully or partially during the chemical reaction.

The chemical reagents are needed to be diluted serially if they are measured directly without any dilution because this might produce  the faulty colors  an can give incorrect result during the  spectrophotometer. The serial dilution is important to get the correct optical density.

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Groundwater _____. contains high levels of salt minerals is the largest available source of freshwater is only found in very wet
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Groundwater is the largest available source of freshwater - up to 90%. It supplies drinking water especially to rural areas. They are also used to irrigate crops.
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How many atoms of each element does sodium carbonate, Na2CO3, contain? Sodium = 1 atom, Carbon = 2 atoms, Oxygen = 3 atoms Sodiu
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It contains

2 sodium
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what is the subdivision of the peripheral nervous system that connects to sensory receptors and to skeletal muscles called
vampirchik [111]

Answer:

The somatic nervous system

Explanation:

The peripheral nervous system is categorized into two types: the autonomic and somatic nervous system.

The somatic nervous system controls the voluntary actions of the boys so is also known as the voluntary nervous system and the voluntary system involves the skeletal muscles therefore is also known as the skeletal nervous system.

The skeletal nervous system contains two types of neurons called the afferent neurons which carries the sensory input from the muscle to the CNS ans the efferent neurons which brings the impulse from the CNS to the muscles.

Thus, the somatic nervous system is the correct answer.

7 0
3 years ago
Which of the following astronomical bodies or collection of astronomical bodies is likely to be a part of the others listed?
lesya692 [45]

Answer:

Sun

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Sun is the only star in our solar system, and planets orbit around it. Our solar system is the part of Milky way (located in one of the outer bands of the Milky way), and the Milky way is the part of the Universe (Universe is made up of billions of galaxies, and Milky way is one of those galaxies). Hence, in the given options, the Sun is the part of all of the other options given.

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