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4 years ago

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A patient comes in showing signs of severe depression. Dr. Jorgenson wants to order an EEG and hormone panel, while Dr. Frieden

wants to set up a system of rewards and punishments, demonstrating the conflicting approaches of

1 answer:

Citrus2011 [14]4 years ago

6 0

So what is the question asking exactly?

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Are usually solid shiny and conductive object

crimeas [40]

If the solid is a metal, yes. Most solids on the periodic table are metals

8 0

4 years ago

Suppose you have a sample of table salt (NaCl) that has a mass of 100.0 grams. If

IgorC [24]

Taking into account the definition of molarity, the concentration of the solution is 0.855 $\frac{moles}{liter}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liter}$ .

<h3>Molarity of NaCl</h3>

In this case, you have:

number of moles of NaCl= $100 grams\frac{1 mole}{58.45 grams} =$ 1.71 moles (being 58.45 g/mole the molar mass of NaCl)
volume 2 L

Replacing in the definition of molarity:

$Molarity=\frac{1.71 moles}{2 L}$

Solving:

Molarity= 0.855 $\frac{moles}{liter}$

Finally, the concentration of the solution is 0.855 $\frac{moles}{liter}$ .

Learn more about molarity:

<u>brainly.com/question/9324116</u>

<u>brainly.com/question/10608366</u>

<u>brainly.com/question/7429224</u>

5 0

2 years ago

How many molecules are there in 6.73 moles of phosphorus trichloride? (write your answer in scientific notation).

anyanavicka [17]

Answer: There are $4.05\times 10^{24}$ molecules in 6.73 moles of phosphorus trichloride

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

1 mole of $PCl_3$ contains = $6.023\times 10^{23}$ molecules

Thus 6.73 moles of $PCl_3$ contains = $\frac{6.023\times 10^{23}}{1}\times 6.73=4.05\times 10^{24}$ molecules

Thus there are $4.05\times 10^{24}$ molecules in 6.73 moles of phosphorus trichloride

3 0

3 years ago

Pls anwser (you don’t have to anwser all of them) heeelllpppp

alex41 [277]

Hi! For the first question: this isn’t true. It can’t be done. Animals can’t evolve from other animals.

4 0

3 years ago

Read 2 more answers

Example of a chemical change that you encounter everyday

dexar [7]

Food metabolising inside of your liver.

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3 years ago

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