A resistor is placed in a circuit. The voltage of the circuit is changed and the current is measured. The graph seen here shows the data that was collected. Determine the resistance of the resistor in this circuit.

Answer:

it down their!!!!!!!!!!1

Explanation:

The new volume  

=

23.2

L

Answer:

Option B:Publishing scientific journals

Explanation:

We are told that Lindsey is trying to gain credibility for her studies.

Since she completed her experiment and discussed her finding with colleagues, the most logical next step would be to publish scientific journals. This is because the other options given are not steps that should be taken because she has completed the research and therefore has no need to speak at a conference next nor even create new charts which they must have done during the research. No need for her to make sure the topic is popular.

Option B is correct

There is no limiting reactant because both reactants produce the same amount of products indicating that neither reactant is in excess and both are fully consumed in the reaction.

The limiting reagent is described as  the reactant that is completely used up in a reaction, and thus determines when the reaction stops.

calculating the number of moles of each reactant of the equation:

C2H4 + 3 O2 -> 2 CO2 + 2 H2O.

Moles of C2H4: not given, assume 1 mole

Moles of O2: 3 moles (given in the equation)

Moles of CO2 produced by 1 mole of C2H4: 2 moles (from the balanced equation)

Moles of H2O produced by 1 mole of C2H4: 2 moles (from the balanced equation)

Moles of CO2 produced by 3 moles of O2: 2 x 3/3 = 2 moles (from the balanced equation)

Moles of H2O produced by 3 moles of O2: 2 x 3/3 = 2 moles (from the balanced equation)

In conclusion, both reactants produce the same amount of products (2 moles of CO2 and 2 moles of H2O).

Learn more about limiting reagent at: https://brainly.com/question/30991317

#SPJ1

Answer:

To convert joules to calories, you can use the conversion factor:

1 calorie = 4.184 joules

To find out how many calories are in 4,180 joules, divide the given value by the conversion factor:

4,180 joules / 4.184 joules per calorie = 0.9 calories (approximately)

Therefore, there are approximately 0.9 calories in 4,180 joules.

In both fusion and fission, stability decreases as a result of the reaction. In fusion, two smaller nuclei combine to form a larger nucleus, releasing energy in the process.

The resulting nucleus may be unstable and undergo radioactive decay, which can further release energy. In fission, a larger nucleus is split into smaller nuclei, also releasing energy. The resulting nuclei may also be unstable and undergo radioactive decay. In both cases, the process of splitting or combining nuclei releases energy, but it also reduces the overall stability of the resulting nuclei.

To know more about radioactive decay please refer:

https://brainly.com/question/1770619

#SPJ1

Increasing the pressure of a gas system increases the rate of reaction because it leads to an increase in the number of collisions between gas molecules. option D. It increases the rate of reaction because it increases the number of collisions.

Increasing the pressure of a gas system increases the rate of reaction because it leads to an increase in the number of collisions between gas molecules. As pressure increases, the gas molecules are compressed into a smaller volume, resulting in a higher concentration of molecules per unit volume. This higher concentration means that there are more gas molecules in a given space, leading to a greater frequency of collisions. According to the collision theory, for a reaction to occur, molecules must collide with sufficient energy and the correct orientation. By increasing the pressure, the molecules are brought closer together, increasing the likelihood of effective collisions. This, in turn, increases the rate of reaction. Therefore, increasing the pressure of a gas system increases the rate of reaction by increasing the number of collisions between gas molecules. Option D) is correct

For more question on pressure

https://brainly.com/question/24719118

#SPJ8

Cr₂O₃ ( s ) + 3H₂S ( g ) → Cr₂S₃ ( s ) + 3H₂O ( l )

mol  Cr₂S₃ = 421 : 200.19 g/mol = 2.103

mol Cr₂O₃ ≈ mol Cr₂S₃ = 2.103 ( equivalent coefficient)

mass Cr₂O₃ = 2.103 x 151.99 g/mol = 319.63 gr

The number of the atoms that should be the numerator is 6.02 * 10^23 atoms.

We have to note that the conversion factor is the factor that can be used in the conversion of one unit to the other. We have to note that if we are able to change the unit then we can be able to make the conversion.

We have to note that the Avogadro's number is the number of atoms that we can find in one mole of a substance and it has a value of about 6.02 * 10^23 atoms in the atom of magnesium.

Learn more about atoms:https://brainly.com/question/13654549

#SPJ1

The number of moles for the quanity 8.06 x\(10_{21\) atoms of Pt​ is approximately 2.61 grams.

To calculate the number of moles for a given quantity of atoms, we can use Avogadro's number and the molar mass of the element. Avogadro's number is 6.022 x 10²³ atoms/mol.

In this case, you have 8.06 x 10²¹ atoms of Pt. To find the number of moles, divide this quantity by Avogadro's number:

8.06 x 10²¹  atoms Pt / 6.022 x 10²³  atoms/mol = 0.0134 mol Pt

So, there are approximately 0.0134 moles of Pt in 8.06 x 10²¹  atoms of Pt.

The molar mass of Pt (platinum) is 195.08 g/mol. To convert the number of moles to grams, multiply the number of moles by the molar mass:

0.0134 mol Pt x 195.08 g/mol = 2.61 g Pt

Therefore, there are approximately 2.61 grams of Pt in 8.06 x10²¹  atoms of Pt.

In summary, the number of moles for the quantity 8.06 x 10²¹ atoms of Pt is approximately 0.0134 moles. This is equivalent to approximately 2.61 grams of Pt. Remember to use Avogadro's number and the molar mass to perform these calculations accurately.

Know more about  moles   here:

https://brainly.com/question/29367909

#SPJ8

Work can be totally transformed into heat (for example, by friction), whereas heat can only be partially converted into work.

A model is a depiction of something that is frequently too difficult to directly observe or display. Although experimental testing validates a model, it is only accurate in explaining specific characteristics of a physical system.

Work is defined as the transfer of energy to or from a system by any means other than heat.

A transfer of energy to or from a system by any means other than heat is called “work”. Work can be completely converted into heat (by friction, for example), but heat can only be partially converted to work. The Second Law of Thermodynamics, states that the complete conversion of heat into work is impossible.

Heat transmission in materials can be described using the kinetic particle model. Heat energy always travels from a high-temperature zone to a low-temperature region.

Thus, heat can do work by constructing a model.

To learn more details about heat here:

brainly.com/question/1429452

#SPJ1

We want to know the initial pressure, given:

V1 = 50L

V2 = 200L

P2 = 0.25 atm

P1 = ?

The following equation will be of use:

P1V1 = P2V2

P1 = (P2V2)/V1

P1 = (0.25atm x 200L)/50L

P1 = 1 atm

Answer:

Oxidation reaction; propanone and potassium manganate (VII) are formed.

Oxidation reaction; butan-2-one and potassium manganate (VII) are formed.

Reduction reaction; pentan-3-ol is formed.

Esterification reaction; ethyl ethanoate and water are formed.

Answer:

Approximately \(81.84\%\).

Explanation:

Balanced equation for this reaction:

\({\rm Na_{2}CO_{3}}\, (aq) + {\rm CaCl_{2}} \, (aq) \to 2\; {\rm NaCl}\, (aq) + {\rm CaCO_{3}}\, (s)\).

Look up the relative atomic mass of elements in the limiting reactant, \(\rm CaCl_{2}\), as well as those in the product of interest, \(\rm CaCO_{3}\):

Calculate the formula mass for both the limiting reactant and the product of interest:

\(\begin{aligned}& M({\rm CaCl_{2}}) \\ &= (40.078 + 2 \times 35.45)\; {\rm g \cdot mol^{-1}} \\ &= 110.978\; \rm g \cdot mol^{-1}\end{aligned}\).

\(\begin{aligned}& M({\rm CaCO_{3}}) \\ &= (40.078 + 12.011 + 3 \times 15.999)\; {\rm g \cdot mol^{-1}} \\ &= 100.086\; \rm g \cdot mol^{-1}\end{aligned}\).

Calculate the quantity of the limiting reactant (\(\rm CaCl_{2}\)) available to this reaction:

\(\begin{aligned}n({\rm CaCl_{2}) &= \frac{m({\rm {CaCl_{2}})}}{M({\rm CaCl_{2}})} \\ &= \frac{17.87\; \rm g}{110.978\; \rm g \cdot mol^{-1}} \\ &\approx 0.161023\; \rm mol \end{aligned}\).

Refer to the balanced equation for this reaction. The coefficients of the limiting reactant (\(\rm CaCl_{2}\)) and the product (\({\rm CaCO_{3}}\)) are both \(1\). Thus:

\(\displaystyle \frac{n({\rm CaCO_{3}})}{n({\rm CaCl_{2}})} = 1\).

In other words, for every \(1\; \rm mol\) of \(\rm CaCl_{2}\) formula units that are consumed, \(1\; \rm mol\!\) of \(\rm CaCO_{3}\) formula units would (in theory) be produced. Thus, calculate the theoretical yield of \(\rm CaCO_{3}\!\) in this experiment:

\(\begin{aligned} & n(\text{${\rm CaCO_{3}}$, theoretical}) \\ =\; & n({\rm CaCl_{2}}) \cdot \frac{n({\rm CaCO_{3}})}{n({\rm CaCl_{2}})} \\ \approx \; & 0.161023\; {\rm mol} \times 1 \\ =\; & 0.161023\; \rm mol\end{aligned}\).

Calculate the theoretical yield of this experiment in terms of the mass of \(\rm CaCO_{3}\) expected to be produced:

\(\begin{aligned} & m(\text{${\rm CaCO_{3}}$, theoretical}) \\ = \; & n(\text{${\rm CaCO_{3}}$, theoretical}) \cdot M(({\rm CaCO_{3}}) \\ \approx \; & 0.161023\; {\rm mol} \times 100.086\; {\rm g \cdot mol^{-1}} \\ \approx \; & 16.1161\; \rm g \end{aligned}\).

Given that the actual yield in this question (in terms of the mass of \(\rm CaCO_{3}\)) is \(13.19\; \rm g\), calculate the percentage yield of this experiment:

\(\begin{aligned} & \text{percentage yield} \\ =\; & \frac{\text{actual yield}}{\text{theoretical yield}} \times 100\% \\ \approx \; & \frac{13.19\; {\rm g}}{16.1161\; {\rm g}} \times 100\% \\ \approx \; & 81.84\%\end{aligned}\).

Answer: Neutral Xe atom

The periodic table of elements has vertical groups that tell you the number of electrons and horizontal periods that tell you the number of valance shells. The chemical elements are arranged in the periodic table according to their atomic numbers, starting with hydrogen, which has the lowest atomic number, and moving up to uranium, which has the greatest atomic number.

Due to their comparable chemical behavior, the periodic table's vertical columns are referred to as groups or families. The number of valence electrons and chemical characteristics is the same for all members of a family of elements. Periods refer to the horizontal rows on the periodic table.

The contemporary periodic table has 18 vertical columns and 7 horizontal periods.

To know more about periodic table, visit;

https://brainly.com/question/29766008

#SPJ1

Answer:The suggested answers are for K=298 degrees and the nearest correct answer seems to be increase the room temperature by 22 degrees Fahrenheit. But by calculation, for 300 K, then convert 300k to degrees Celsius = 300-273.15=26.85 degrees celsius. Then convert the 26.85 to degrees F, so F=9/5C + 32= 48.33+32=80.33-55F (present room temperature)=25.33 degrees F to increase the room temperature by.

Explanation:

According to conversion between  Celsius and kelvin temperatures , 363.6 K is 90.6°C.

Three scales are used to measure temperature the Kelvin scale, Celsius scale and Fahrenheit scale.The basic unit of temperature which  is used in SI system is kelvin temperature however it is impractical in most practical uses.

The Celsius scale is commonly used in clinical terms where it is related to kelvin scale as the two units are equal in magnitude. The difference between Celsius and kelvin scale is the zero point which on kelvin scale represents theoretical temperature at which substance has no further heat loss.

While the zero point on Celsius scale represents freezing point of water. The two scales are related as follows

K=°C+273

Learn more about conversion between Celsius and kelvin,here:

https://brainly.com/question/3168451

#SPJ2

Answer:

Gases > liquids > solids.

Explanation:

The statement that best describes the relationship between the particle motion for the states of matter is Gases > liquids > solids.

In a solid, the particles are packed tightly together and they vibrate in place. In a liquid, the particles are still close together, but they can move around each other. In a gas, the particles are far apart and they move around very quickly.

The faster the particles move, the more energy they have. So, gases have the most energy, liquids have less energy, and solids have the least energy.

rise and cold air

it doesn't fall cause I already fall inlove with levi

Rough ER is connected to the nuclear membrane and is responsible for the synthesis and processing of proteins.

The rough endoplasmic reticulum (ER) is a network of membrane-bound sacs and tubules that is studded with ribosomes on its surface. These ribosomes are responsible for protein synthesis. The rough ER is connected to the nuclear membrane because it receives instructions for protein synthesis from the DNA in the nucleus. This connection allows for the efficient transfer of genetic information from the nucleus to the rough ER.

Once the ribosomes on the rough ER synthesize proteins, the rough ER is also involved in the processing and modification of these proteins. It helps in folding the newly synthesized proteins into their functional three-dimensional shapes and also adds various modifications such as glycosylation (the addition of sugar molecules) or signal sequences that target the proteins to specific locations within or outside the cell.

After processing, the proteins may be transported to other parts of the cell or exported to the cell membrane or extracellular space. The connection between the rough ER and the nuclear membrane ensures a coordinated flow of genetic information and protein synthesis, allowing the cell to efficiently carry out its functions.

for such more questions on  proteins

https://brainly.com/question/30245761

#SPJ8

Answer:

Question are not clear

Answer:

0.075 mol/dm^3

Explanation:

Answer:

13 mins

Explanation:

We need to find how many half lives are required to reach .0313

.0313 = 1/2^n    log both sides and solve for n

log.0313 / log (1/2 )   = n     where n= NUMBER of halflives

n = ~ 5 half lives

   these 5 half lives took up 65 minutes

       so EACH half life is 65/5 = 13 mins

Answer:

C3H8 + 502+3CO2 + 4H20

Explanation:

In order to get this answer you would have to would balance out the carbons on the products side by multiplying CO2 by 3. The new equation will be 

C3H8 + 02 ----> 3CO2 + H20

Now, that the carbons are balanced, we will look at the hydrogens. We can multiply the number of waters on the product side by 4, to make 4 H20 molecules. This gives both sides of the equation 8 hydrogens. Next we can check our oxygens. There will be 10 oxygens on the products side and 2 on the reactants so to balance these out, we multiply the 02 on the reactants side by 5. 

The accumulation of ADP (adenosine diphosphate) affects the rate of metabolic chemical reactions by slowing them down.

What is chemical reaction?
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. It involves the breaking and forming of chemical bonds, resulting in the formation of new substances with different properties. Chemical reactions are essential for many processes in nature, including respiration, digestion, and photosynthesis.

ADP is a by-product of the energy-producing reactions that take place in cells. This by-product can build up and inhibit the activity of enzymes involved in these metabolic reactions. Therefore, an accumulation of ADP can slow down the rate of metabolic chemical reactions.

However, the rate of metabolic chemical reactions can also be sped up by the presence of ADP. This occurs when the cellular metabolic processes become inhibited by the presence of ADP and require a boost to be activated again. In this case, the presence of ADP can activate enzymes and thus speed up the rate of metabolic chemical reactions.

In sum, the accumulation of ADP can either slow down or speed up the rate of metabolic chemical reactions, depending on the current state of the metabolic process.

To know more about chemical reaction click-
https://brainly.com/question/26487468
#SPJ4

The oxidation state of nitrogen (N) in NaNO3 is +5. option B

To determine the oxidation state of nitrogen (N) in sodium nitrate (NaNO3), we need to assign oxidation numbers to each element in the compound.

In NaNO3, we know that the sodium ion (Na+) has a +1 oxidation state because it is an alkali metal. Oxygen (O) typically has an oxidation state of -2 in compounds, and there are three oxygen atoms in NaNO3. Since the compound is neutral, the sum of the oxidation states must be zero.

Let's assume that the oxidation state of nitrogen is x. Therefore, we can set up the equation:

(+1) + x + (-2) * 3 = 0

Simplifying the equation:

+1 + x - 6 = 0

x - 5 = 0

x = +5

Therefore, the oxidation state of nitrogen (N) in NaNO3 is +5.

The oxidation state of an element indicates the number of electrons it has gained or lost in a compound. In this case, the nitrogen atom in NaNO3 has gained five electrons to achieve a stable oxidation state of +5.

It is important to note that oxidation states are formal charges and do not necessarily represent the actual distribution of electrons in a compound. They are assigned based on a set of rules and can be useful in understanding the reactivity and behavior of elements in chemical reactions.

Option B

For more such questions on oxidation state visit:

https://brainly.com/question/25551544

#SPJ8

HAZWOPER training and certification recognize:

The correct option is both A and C

HAZWOPER (Hazardous Waste Operations and Emergency Response) training and certification recognize that a large number of victims (as much as 80%) in hazardous waste incidents or emergencies will self-present or be self-referred for medical treatment.

Additionally, HAZWOPER training acknowledges that victims may use any entrance they can access at a hospital, not just the emergency department entrance.

This is because individuals affected by hazardous materials may arrive at different areas of the hospital seeking medical assistance.

Therefore, option d. Both A and C are correct statements regarding the recognition of HAZWOPER training and certification.

Learn more about HAZWOPER at: https://brainly.com/question/31561828

#SPJ1

Answer:

n2 is correct

Explanation:

i took it just now. :)

The product of this reaction could be N2.

Among the options, only atoms of nitrogen have five electrons on their outermost shell.

The fact that they have five electrons in their outermost shells implies that they can combine by sharing six electrons in a triple bond.

When this occurs, each of the nitrogen atoms involved in the bond now has an octet of electrons. Hence, the product formed when the atoms share six electrons. Which molecule could be the product of the reaction is N2.

Learn more: https://brainly.com/question/4144781

Answer:Two Main Types of Pure Substances

Elements and compounds are the two types of pure substances. Examples of common elements include carbon, nitrogen and hydrogen. They consist of one type of atom and cannot break down into something else. Every pure carbon substance, for example, has the same particles in it.

Explanation:I think