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3 years ago

Which of the following molecules is solid at room temperature?.

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1 answer:

VashaNatasha [74]3 years ago

8 0

The given option that has molecules that are solid at room temperature is; D: Saturated Fats

<h3>Molecules at room temperature </h3>

Fatty acids are organic compounds that are poorly soluble in water but soluble in organic solvents.

The two main types of fatty acids are Saturated fatty acids and Unsaturated fatty acid.

Saturated fatty acids contains no double bond in their carbon chains and as such they are solids at room temperature.

Meanwhile, Unsaturated fatty acids contains double bonds in their carbon chains and are thus liquids at room temperature.

The missing options are;

A) Both saturated and unsaturated fats

B) Cholesterol

C) Saturated fats

D) Unsaturated fats

Read more about molecules at room temperature at; brainly.com/question/17481964

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How many electrons pass through a 20-ohms resistor in 10 min if there is a potential drop of 30 volts across it?

tangare [24]

The number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

<h3>What is a resistor?</h3>

In an electronic circuit, a resistor is an electrical component that limits or regulates the flow of electrical current.

Given, the resistance is 20 ohms.

The potential difference is 30 volts

Time is 10 minute

By the formula of current

$\rm I = \dfrac{30}{20} = 1.5 \;C/s$

The charge flowing through the resistor is 1.5 C/s

1 electron charge is 1.6e+19

Now, the number of electrons passing through a 20 ohms resistor is

$\dfrac{1.5}{1.6e+ ^2^1} = 0.9375e+^1^9$

In 10 minutes

$0.9375e+^1^9 \times 60 \times 10 = 5.625e+^2^1$

Thus, the number of electrons passes through 20 ohms resistor in 10 minutes is 5.625e+21.

Learn more about a resistor

brainly.com/question/24297401

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5 0

2 years ago

If 50. 0 g of ch₃oh (mm = 32. 04 g/mol) are added to a 500. 0 ml volumetric flask, and water is added to fill the flask, what is

Elza [17]

Taking into account the definition of molarity, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

<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 $\frac{moles}{liters}$ .

<h3>Concentration of CH₃OH</h3>

In this case, you know:

number of moles= 50 g× $\frac{1 mole}{32.04 g}$ = 1.56 moles, being 32.04 $\frac{g}{mole}$ the molar mass of CH₃OH
volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{1.56 moles}{0.500 L}$

Solving:

<u><em>Molarity= 3.12 </em></u> $\frac{moles}{liters}$

Finally, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

Learn more about molarity:

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

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

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

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2 years ago

How do paragraphs 7-8 contribute to the development of ideas in the text?.

True [87]

Answer: penis

Explanation: penis solves all

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2 years ago

Phyllis is a real estate salesperson in Maryland. The commission recently summarily revoked her license because of fraudulent co

Stells [14]

The statement which is true about Phyllis' predicament is that: C. Phyllis may request a hearing to appeal the summary revocation.

<h3>What is a license?</h3>

A license is also referred to as a certificate and it can be defined as an authorization that is typically issued by state governments to an agent, broker or real estate salesperson, so as to avail him or her the legal ability to physically and virtually represent either a home seller or buyer, especially during the process of buying or selling a real estate property.

Furthermore, a real estate is constitutionally enabled by law to revoke the licenses of a fraudulent or erring agent, broker or real estate salesperson.

However, we can infer and logically deduce the statement which is true about Phyllis' predicament is that he can request a hearing to appeal the summary revocation.

Read more on summary revocation here: brainly.com/question/20566074

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Complete Question:

Phyllis is a real estate salesperson in Maryland. The commission recently summarily revoked her license because of fraudulent conduct. Which of the following is true?

A. Phyllis can never practice real estate in Maryland again.

B. Phyllis may not reapply for a real estate license for three years.

C. Phyllis may request a hearing to appeal the summary revocation.

D. The commission must also investigate Phyllis's broker to see if he is also guilty of misconduct.

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2 years ago

Which of the following non-renewable resources of energy has the smallest amount of fuel left on earth?.

HACTEHA [7]

Answer:

Their is no answer choices but Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy.

Explanation:

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2 years ago