Conduction happens as energy flows from a warmer object to a cooler object. Which of the following is evidence of conduction?

The structure for 2-methyl-3-propalhex-2-yne can be shown in the image attached.

We know that a compound is composed of atoms that can be found in the compound. For the organic compound, we can see that we can be able to obtain the structure of the compound from the structure.

The compound as we can see is  2-methyl-3-propalhex-2-yne. The structure of the compound must be able to include a double bond as we can clearly see from the image that is attached to this answer.

Learn more about structure:https://brainly.com/question/24076265

#SPJ1

The temperature inside the freezer is approximately -164°C.

To solve this problem, we can use the combined gas law equation:

\((P1V1)/T1 = (P2V2)/T2\)

where P is the pressure, V is the volume, and T is the temperature of the gas.

We know that the initial volume of the balloon is 145 mL and the final volume is 35 mL. We also know that the initial temperature is 25°C or 298 K, and we need to find the final temperature.

Assuming the pressure of the gas remains constant, we can rearrange the combined gas law equation to solve for the final temperature:

\(T2 = (P2V2/T1)(P1/V1)\)

Plugging in the values we know, we get:

\(T2 = (1 atm * 35 mL/298 K)(1 atm/145 mL) = 0.0808 atm/mL\)

Multiplying both sides by 298 K and dividing by 0.0808 atm/mL, we get:

T2 = 109.15 K or approximately -164°C

Therefore, the temperature inside the freezer is approximately -164°C.

Learn more about combined gas law, here:

https://brainly.com/question/30458409

#SPJ1

Mole measures the number of elementary entities of a given substance that are present in a given sample. The mass of hydrogen is 20.2gram.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance.

Given number of atoms= 6.02 x 10²⁴atoms

we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number

mole =given number of atoms ÷ 6.022×10²³(Avogadro number)

Substituting the values

mole=6.02 x 10²⁴÷ 6.022×10²³

mole = 10 mole

Mole = mass ÷Molar mass

Molar mass = 2.02 g/mol

Substituting the given values

10= mass ÷ 2.02 g/mol

Mass = 20.2gram

Therefore, mass of hydrogen is 20.2gram.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ1

Combining "hydro" and "genes" in the context of the Latin roots, we can interpret it as "water origin" or "water-related origin."

The term "hydro" in Latin means "water." It is derived from the Greek word "hydor," which also signifies water. "Hydro" is commonly used as a prefix in scientific terms related to water or hydrogen. In the context of chemistry, "hydro" often denotes a compound or process involving water or hydrogen atoms. For example, hydrocarbon refers to organic compounds composed solely of hydrogen and carbon atoms.

On the other hand, "genes" in Latin is derived from the Greek word "genos," which translates to "origin" or "birth." In biology, the term "genes" refers to the segments of DNA that contain instructions for the development and functioning of living organisms. Genes determine various traits, such as physical characteristics, behavior, and susceptibility to certain diseases. They play a fundamental role in the transmission of hereditary information from one generation to another.

This interpretation aligns with the understanding that hydrogen, which is essential for life and abundant in water, plays a vital role in various biological and chemical processes.

For such more questions on organic

https://brainly.com/question/28383565

#SPJ8

The strict regulations established by USP Chapter <797> regarding hood-cleaning procedures indicate the critical importance of hood cleaning to patient health and safety.

The purpose of these guidelines is to ensure that compounding pharmacies maintain a clean and sterile environment when preparing medications, especially those that will be administered to patients. The guidelines specify the frequency of cleaning and the level of detail required to ensure that the hoods are free of contaminants, which could compromise the quality and efficacy of the compounded products.

Therefore, Failure to comply with these regulations could result in contamination of medications and subsequent harm to patients. Thus, it is crucial to adhere to these guidelines to maintain a safe and sterile environment for compounding medications.

Learn more about hood cleaning from

https://brainly.com/question/27142235

#SPJ1

Answer:

b) The total moles of each element present in the reactants and in the products.

Explanation:

Hello there!

In this case, since the law of conservation of mass is used to realize that the mass, atoms and molecules of all the species involved in a chemical reaction must be the same at both reactants and products, we can see that a and c stand for those that must be equal; thus, we infer that the moles can be different as they stand for the amount of substance which is related to the mass via molar masses. Therefore, the answer would be b) The total moles of each element present in the reactants and in the products.

Regards!

At pOH value  of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

In this question we will apply the formula

      pH +pOH = 14 . . . . . . . . . . . . .(1)

where pH = concentration of [\(H^{+}\) ] ion

pOH = concentration of [\(OH^{-}\) ] ion

As per the question

pOH =6.0

Putting the value of pOH in equation (1) we get the value of pH

              pH + 6.0 =14

             pH = 14 -6.0

             pH  = 8.0

 The value of pH if the pOH value is 6.0 is 8.0

To find the concentration of \(H^{+}\) ion we will use the following formula

This is calculated by the formula

                                 [\(H^{+}\)} = \(10^{-pH}\)

where we will write the values of pH

Hence the concentration of [\(H^{+}\)} ion is \(10^{-8}\)

Therefore at  pOH of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

Read more about pH

https://brainly.com/question/11300720

The complete question is -

What is the pH value and concentration of [\(H^{+}\) ] ion of the following if the pOH value of the solution is 6.0 ?

The statement 'the pKa is the pH at which a weak acid’s protons are 50% titrated' is true as weak acids do not have the ability to get completely ionized.

The statement is true because weak acids do not completely ionize in solution, so at a certain pH, half of the acid’s protons will be titrated.

This is known as the acid’s dissociation constant, which is a measure of the acid’s ionization in solution. The pKa is the pH at which the acid’s dissociation constant is equal to one.

The lower the pKa, the more acidic the solution will be. A weak acid with a pKa of 2 will be more acidic than one with a pKa of 5.

Therefore, the statement 'the pKa is the pH at which a weak acid’s protons are 50% titrated' is true.

To learn more about pH , click here

https://brainly.com/question/15289741

SPJ4

The chemical reaction in which ammonium sulfate and potassium hydroxide are mixed together is called double displacement (Option D)

Double displacement is a type of chemical reaction where two reactants exchange parts to form two new products. For example, when an acid and a base are combined, they produce salt and water. This reaction is known as double displacement because the ions from both reactants have exchanged places. Double displacement reactions typically involve the exchange of ions between aqueous solutions, but can also occur with solid reactants.

The chemical reaction in which ammonium sulfate and potassium hydroxide are mixed together is a double displacement reaction. In this type of reaction, the positive and negative ions of two ionic compounds switch places to form two new ionic compounds.

Learn about Double displacement here https://brainly.com/question/13265799

#SPJ1

Answer:

17.9

Explanation:

to find mass you multiply density and volume. so mass=(51)(0.351) which is 17.901

Answer:

NaS2 it is the most stable

Answer:

Question 10: Which substance is insoluble in water?

Answer: Silver chloride (AgCl).

Question 11: Which ion is soluble in water?

Answer: Chloride (Cl-).

Question 12: Which combination will form a precipitate (solid) according to solubility rules?

Answer: Calcium sulfate (CaSO4) and sodium carbonate (Na2CO3).

Question 13: Which statement is true about dilute and concentrated solutions?

Answer: Concentrated solutions have more solute than dilute solutions.

Question 14: How much of a 0.500 M sodium chloride solution is needed to make 500 mL of a 0.100 M solution?

Answer: 0.100 L (100 mL).

Question 15: How much of a 0.500 M hydrochloric acid solution should be used to make 250 mL of a 0.100 M solution?

Answer: 50.0 mL.

Explanation:

As a result, at the same temperature and pressure as the 12.4 g sample of hydrogen gas, a 56.2 g sample of oxygen gas takes up 39.3 l.

1mol of petrol takes up 22.4 litres at STP. So, 32 grams of oxygen take up 22.4 litres of space. Consequently, 33.6 litres of space are taken up. Hence, 33.6 litres is the volume that 48 g of O2 at STP occupy.

To resolve this issue, we can employ the ideal petrol rule, PV = nRT. If both gases have the same temperature and pressure, we can put up the equation as follows: PV = nRT

For hydrogen gas: n(H2) = m(H2) / M(H2)

= 12.4 g / 2.016 g/mol  

= 6.16 mol

Substituting the given values, we get:

(1 atm)(23.5 L) = (6.16 mol)(0.08206 L·atm/mol·K)(T)

Solving for T, we get:

T = (1 atm)(23.5 L) / (6.16 mol)(0.08206 L·atm/mol·K)

T = 283 K

For oxygen gas:

n(O2) = m(O2) / M(O2)

n(O2) = 56.2 g / 31.9988 g/mol

n(O2) = 1.757 mol

Substituting the values, we get:

(P)(V) = (n)(R)(T)

(1 atm)(V) = (1.757 mol)(0.08206 L·atm/mol·K)(283 K)

Solving for V, we get:

V = (1.757 mol)(0.08206 L·atm/mol·K)(283 K) / (1 atm) = 39.3 L

To know more about oxygen visit:-

https://brainly.com/question/14386958

#SPJ1

Answer:

2, 13, 8, 10

Explanation:

8 carbon, 26 oxygen, 20 hydrogen total on each side.

Answer:first one: 3.0g second one: 10g H2O(I)

Explanation:

Answer:

First blank: 3.0 g Pb

Second Blank: 10g \(H_{2} O\)(l)

Explanation:

Edge '21

Answer:

true

because with the both states we increase the surface of reaction

Since most reactions take place in solutions, it's critical to comprehend how the substance's concentration is expressed in a solution. The number of chemicals in a solution can be stated in a variety of ways. The grams of acetic acid is 611.90 g.

The number of moles of dissolved solute per liter of solution is the definition of molarity, a unit of concentration. Molarity is defined as the number of millimoles per milliliter of the solution by dividing the number of moles and the volume by 1000.

The equation which is used to calculate the molarity of two different solutions is:

M₁V₁ = M₂V₂

M₁ = M₂V₂ / V₁

0.300 × 18.53 / 10.00 = 0.55 M

Number of moles = Molarity × volume

n = 0.55 × 18.53 = 10.19

Mass = n × Molar mass = 10.19 × 60.05 = 611.90 g

To know more about molarity, visit;

https://brainly.com/question/16587536

#SPJ1

Step 1

Molarity is defined as:

molarity (M or mol/L) = moles of solute/volume of the solution (L)

-------------

Step 2

Information provided:

Moles of solute (LiCl) = 4.5 moles

Volume of solution = 3.7 L

-------------

Step 3

Procedure:

Molarity = 4.5 moles/3.7 L = 1.216 mol/L

Answer: Molarity = 1.216 mol/L

Answer:

198K − 273.15 =-75,15°C

Explanation:

I'm sorry I can't explain it really good, I just knew the formula sorry;-;''

Answer: A = atomic number = 12

Explanation: A (atomic number) defines the chemical element. It is the numbervof protons or electrons. Neutron numbers may vary, produving isotopes of differing atomic mass. This isotope has atomic mass 28. The atomic number 12 = carbon. C28 does not really exist. If it could be produced it would be radioactive with an almost zero halflife.

Answer: ribosomes and membranes.

Explanation:

The amount of energy required to heat 100 g of water is 268000 J.

Energy is the ability or the capacity to perform work.

To calculate the amount heat energy required to change the water to steam, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the amount of energy required is 268000 J.

Learn more about energy here: https://brainly.com/question/19666326

#SPJ1

Answer:

C

Explanation:

Nuclear energy produces radioactive waste. One example, the atomic bomb dropped on Hiroshima and Nagasaki during World War 2 killed many Japanese because of the radioactive waste in the air that caused them to get cancer and pass away as a result.

Explanation:

Selective breeding involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics.

Answer:

tissue

Explanation:

cell→tissue→organ→systems→organism

Answer:

H₂O

Explanation:

Based electronegativity, water H₂O will have the higher melting point from the given choices. The binding force between hydrogen and oxygen is greater than for the others.

Answer:

H2O

Explanation:

hoffe das hilfts