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8_murik_8 [283]

3 years ago

5

What is the relationship between the period and the orbital radius? Select one: a. It is a direct relationship- As the period in

creases the orbital radius also increases. b. It is an inverse relationship- As the period increases the orbital radius decreases.

1 answer:

Nezavi [6.7K]3 years ago

3 0

It is an inverse relationship as the period increases the orbital radius decreases

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Study the figures below which illustrate the steps in the following chemical reaction:

Tanya [424]

Answer:

Hello - this is Mrs. Gussman, your chemistry teacher. I wrote this exam question and posting it online is a violation of the academic integrity policy. Remove this post immediately.

Explanation:

7 0

1 year 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:

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

5 0

1 year ago

What does the slope of a distance vs time graph tell you? yes

bonufazy [111]

Answer:

an increase of acceleration or decrease of acceleration

Explanation:

5 0

2 years ago

A backpacker carries 2.7 L of white gas as fuel for her stove.How many pounds does the fuel add to her load? Assume the density

Zepler [3.9K]

2.7 L in cm³ :

2.7 * 1000 = 2700 cm³

Weight = Volume * Density

2700 * 0.79 = 2133 g

1 Ibs = <span>453.59 g

2133 / 453.59 = 4.70 Ibs

hope this helps!</span>

6 0

2 years ago

Carbon-12 and carbon-13 are isotopes of carbon. Which of the following statements is correct?

kiruha [24]

Carbon-13 has 7 neutrons and carbon-12 has 6 neutrons. Carbon-12 is the most common isotope of carbon. Carbon-14 is radioactive and very rare. The symbols for the isotopes of carbon atoms shown here indicate they each have six protons but mass numbers of 14, 13 and 12.

3 0

2 years ago

Read 2 more answers