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goldenfox [79]
3 years ago
5

Which statement best explains the importance of nerve cells?

Chemistry
2 answers:
faltersainse [42]3 years ago
7 0

first one, nerve cells are used to send messages from different parts of the body to the brain.

Free_Kalibri [48]3 years ago
6 0
Nerve cells re used to send messages from different parts of the body to the brain
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An aqueous solution has a molality of 3. 64 kcl. what is the the mass percent of kcl in the solution? enter your answer to three
Sliva [168]

The mass percentage of KCl solution is 21.34%

Calculation,

Given molality of KCl aqueous solution =  3. 64  m =  3. 64 mole/ Kg

It means 3. 64 mole of solute present in 1Kg of solvent

or ,  3. 64 mole of solute present in 1000 g of solvent ( water )

Mass of solute ( KCl ) =  3. 64 mole×74.55 g/mole =271.3 g

The total mass of solution ( KCl + water ) = 271.3 g + 1000 g = 1271.3 g

Mass percentage is equal to percentage of mass of solute present in total mass of solution.

Mass percentage = 100×271.3 g/1271.3 g = 21.34%

to learn more about mass percentage

brainly.com/question/27108588

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5 0
2 years ago
Which of the following is a characteristic of<br> a salt?
alexdok [17]

Answer:

Salts can be several different colors and may be any of the five tastes, including salty, sweet, bitter, sour or savory. Their odor depends on the acid and base it is comprised of. Salts comprised of strong acids and bases, called strong salts, are odorless.

8 0
3 years ago
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When the nuclide uranium-234 undergoes alpha decay: the name of the product nuclide is . the symbol for the product nuclide is?
Schach [20]
Answer is: <span>name of the product nuclide is thorium-230.
</span>

<span>Alpha particle is nucleus of a helium-4 atom, which is made of two protons and two neutrons.
²³</span>⁴U → ²³⁰Th + α (alpha particle).

Alpha decay is radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and transforms into an atom with an atomic number that is reduced by two and mass number that is reduced by four.

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3 years ago
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Help with what???????????????????????????????
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3 years ago
What is an ""acid""? What is a ""base""?
pantera1 [17]

Answer:

There are two definitions for acid and base in chemistry.

Explanation:

There are different definitions of Acid and Base:

The <em>Arrhenius</em> definition sais that <u>acid</u> is every substance that increases the concentration of protons in water. Thus, a <u>base</u> is a substance that increase the concentration of oxydriles in water.

On the other hand, the <em>Bronsted</em> definition sais that an <u>acid</u> is a substance with the ability to give protons and a <u>base</u> is a substance with the ability to accept protons.

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3 years ago
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