According to the graph, predict the force of gravity on an object of mass 1000 kg if the gravitational force is 25 Newtons for an object of 500 kg.

Answer:

Nitrogen (N)

Explanation:

From the question given above, the following data were obtained:

Electronic configuration of the element => 1s² 2s²2p³

Next, we shall determine the number of electrons present in the element.

Thus, the number of electrons in the element can be obtained as follow:

Number of electron = 2 + 2 + 3

Number of electron = 7

Next, we shall determine the number of protons in the element.

Since the element is neutral, the number of protons is the same as the number of electrons. Mathematically,

Number of protons = number of electrons

Number of electron = 7

Therefore,

Number of protons = 7

Finally, we shall determine the atomic number of the element.

The atomic number of an element is the number of protons in the atom of the element. Mathematically,

Atomic number = number of protons

Number of protons = 7

Therefore,

Atomic number = 7

Comparing the atomic number of the element ( i.e 7) with those in the periodic table, the name of the element is Nitrogen (N) since no two elements have the same atomic number.

The mass percentage of C in morphine would be 4.21%.

The mass percentage of a composition in a compound is the mass of the composition relative to the mass of the entire compound. This can be mathematically expressed as:

Mass percentage = mass of component/mass of substance x 100%

In this case, we are looking for the mass percentage of C in \(C_{17}H_{19}NO_3\).

Molar weight of C = 12 g/mol

Molar mass of  \(C_{17}H_{19}NO_3\) = (12x17) + (1x19) + (14x1) + (16x3)

                                             = 285 g/mol

Mass percentage of C = 12/285

                                     = 4.21% to 2 decimal places.

In other words, the mass percentage of C in morphine is 4.21%.

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Equilibrium pressure of NO2 (g) is 0.3604. This is calculated from the expression of equilibrium constant.

Dinitrogen tetroxide in its liquid state was used as one of the fuels on the lunar lander. Decomposition of gaseous nitrogen dioxide ,

N2O+ (g)  ---> 2NO2 (g)

chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time. For this equilibrium reaction, equilibrium constant can be represented as

K(eq.) = concentration of product / concentration of reactant

In gaseous phase we consider the presence  of the molecule ,

 Kp = [NO2] / [N2O4]

where, Kp = equilibrium constant that equals to 0.133

            [N2O4] = Presence of N2O4 at equilibrium that equals to 2.71.

Putting the values in the expression of equilibrium constant,

0.133 = [NO2]2 / 2.71

[NO2]2 = 0.133 * 2.71

             = 0.3604

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Answer:

The enthalpy change of the reaction is 4.78 × 10⁴ J.

Explanation:

We are given that 0.717 g of sodium metal reacts with hydrochloric acid to produce 7450 J of heat.

Converting grams of sodium to moles:

\(\displaystyle 0.717 \text{ g Na} \cdot \frac{1 \text{ mol Na}}{22.99 \text{ g Na}} = 0.0312 \text{ mol Na}\)

And dividing the amount of heat produced by the moles of sodium reacted yields:

\(\displaystyle \Delta H = \frac{7450 \text{ J}}{0.312 \text{ mol Na}} = 2.39 \times 10^4 \text{ J/mol Na}\)

Because the given reaction has two moles of sodium metal, we can multiply the above value by two to acquire the enthalpy change of the given reaction:

\(\displaystyle \Delta H = 2\text{ mol Na}\left(2.39 \times 10^4 \text{ J/mol Na}}\right) = 4.78 \times 10^4 \text{ J}\)

In conclusion, the enthalpy change of the reaction is 4.78 × 10⁴ J.

Explanation:

it is negative acceleration

Answer:

negative acceleration

Explanation:

The equilibrium constant (Kc) for the given reaction is approximately 16.448. The value of Kc indicates the relative concentrations of reactants and products at equilibrium. In this case, a Kc greater than 1 suggests that the products (H2 and P4) are favored at equilibrium, indicating that the forward reaction is more favorable.

To determine the equilibrium constant (Kc) for the given reaction:

4PH3(g) ↔ 6H2(g) + P4(g)

We can write the equilibrium constant expression based on the stoichiometric coefficients:

Kc = ([H2]^6 * [P4]) / ([PH3]^4)

Substituting the given equilibrium concentrations:

[PH3] = 0.250 M

[H2] = 0.580 M

[P4] = 0.750 M

We can plug in these values into the equilibrium constant expression:

Kc = ([0.580]^6 * [0.750]) / ([0.250]^4)

Kc = (0.0860128 * 0.750) / (0.00390625)

Kc = 16.448

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Digital waves are commonly used in high-frequency wireless networks instead of analog waves because digital signals are less susceptible to interference from obstacles and noise.

Analog signals vary continuously over time and can be affected by various forms of interference, such as distortion or attenuation, which can result in the loss or corruption of information.

In contrast, digital signals are represented as a series of discrete values or binary digits, which are more resilient to interference and can be easily reconstructed at the receiving end. Digital signals are also easier to compress, allowing for more efficient use of the available bandwidth and higher data transfer rates.

Therefore, digital signals are the preferred choice for high-frequency wireless networks as they provide reliable, high-speed data transmission while minimizing the impact of interference and signal loss caused by obstacles.

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Note : The search engine could not find the complete questions.

Answer: 6.23

Explanation:

1) solve for pH  

pH=-log (H3O+) = - log 1.7 X 10^-8 =7.77

2) now do 14-pH  = 14 -7.77=6.23

Answer:

1.11 M

Explanation:

M₁V₁ = M₂V₂

Step 1: Define

Molarity₁ = 2.50 M

Volume₁ = 0.890 L

Molarity₂ = unknown

Volume₂ = 2.00 L

Step 2: Substitute and Evaluate for M₂

(2.50 M)(0.890 L) = (M₂)(2.00 L)

2.225 = M₂(2.00 L)

M₂ = 1.1125 M

Step 3: Simplify

We are given 3 sig figs.

1.1125 M ≈ 1.11 M

Answer:

kilo means one thousand

Explanation:

Seeing as there are 1000 metres in one kilometre

Knowing that 1,000 meters are in 1 kilometer, The prefix kilo means 1000 or 1 kilogram (kg).

The metric system is the system that uses gram, liter, and meter as the base unit for measuring the distance, volume, and length of any object or entity.

The metric system was started in France in 1970. There are common seven units in the metric system. The three main base units are gram, liter, and meter.

A liter is used to measure the Volume. Grams are used to measuring the quantity of a solid item. Meter is used to measure the distance or length of anything.

The kilogram is the base unit for measuring the quantity of any solid item, such as rice, and 1 kg of rice is the quantity of rice.

Thus, the prefix kilo means 1000 or 1 kilogram (kg).

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The molecular formula of p-dichlorobenzene is C6H4Cl2.

The simplest whole-number ratio of the atoms in a compound is an empirical formula. In other words, it shows the relative number of atoms of each element in a compound, but not the actual number of atoms or the molecular structure. Empirical formulas are often determined by experimental data, such as the mass percentages of each element in the compound, and they are useful for comparing the compositions of different compounds.

The molar mass of the empirical formula can be calculated as follows:

C3H2Cl:

3C = 3 x 12.01 g/mol = 36.03 g/mol

2H = 2 x 1.01 g/mol = 2.02 g/mol

1Cl = 1 x 35.45 g/mol = 35.45 g/mol

Total molar mass = 73.50 g/mol

Now we can calculate the molecular formula by dividing the molar mass of the compound by the molar mass of the empirical formula, and then multiplying each subscript in the empirical formula by this number:

Molecular mass / empirical mass = 147 / 73.50 = 2

C3H2Cl x 2 = C6H4Cl2

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The statement that describes the motion of the squirrel between 5s and 8s is as follows: The squirrel's speed did not change (option C).

A graph in mathematics and statistics is a data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.

According to this question, a graph is used to illustrate the relationship between the distance moved by a squirrel and the time it took it to move i.e. the journey of squirrel for a certain interval or period of time.

Based on the graph above, the speed increased with time up until 5 seconds, however, from 5seconds till 8 seconds, the speed of the squirrel remained constant i.e. did not change until it picked up again.

Therefore, option C is the correct description of the situation of the squirrel between 5s to 8s.

The options to the incomplete question are as follows:

A. The squirrel's speed increased

B. The squirrel's speed decreased

C. The squirrel's speed did not change

D. The squirrel moved backward

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Dietary fats include polyunsaturated fat. Along with monounsaturated fat, it is one of the good fats. Foods like salmon, vegetable oils, and other plant- and animal-based foods include polyunsaturated fat. They act as precursors of other molecules. The given statement is true.

Precursors of eicosanoids with hormone-like properties including prostaglandins, leukotrienes, and thromboxanes are polyunsaturated fatty acids (PUFA).

Dihomo-linolenic acid (DGLA), arachidonic acid (AA), and eicosapentaenoic acid (EPA) are the three precursors that prostaglandins can be formed from. Depending on the precursor, series 1, 2, or 3 prostanoids is produced.

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Answer:

Explanation:

Nitrogen and Phosphorus

Based on these electronegativities, HCI would be expected to have polar covalent bonds and contain H+ ions.

Mathematically,

% of ionic character = 16(Xa - XB ) + 3.5(XA - Xb )

=16(3-2.1)+3.5(3-2.1)²

= 14.4+2.835

= 17.235%

:. The nature of HCI is 17.2% ionic

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Answer: 380 J. Please mark

Explanation:

Answer:

increase

Explanation:

When temperature increases the kinetic energy of the particles in the sugar increases causing the to collide more frequently with the water particles thereby increasing the rate of solubility

6 molls

As a result, if two moles of dinitrogen gas are specified, six moles of dihydrogen gas are needed.

Answer:

Explanation:

The new volume can be found by using the formula

\(V_2 = \frac{P_1V_1}{P_2} \\\)

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

\(V_2 = \frac{118 \times 17}{265} \\ = 7.569811\)

We have the final answer as

Hope this helps you

Answer:

molar mass of CaCO3=40+12+3(16)

=100 gmol-1

Ca percent composition=40/100*100%

=40%

C percent composition=12/100*100%

=12%

0 percent composition=48/100*100%

=48%

Answer:

Since we're sticking with theoretical values instead of experimental, Percent Composition would be (Molar Mass of the element) / (Molar mass of compound) x 100%

Molar mass of Calcium: 40g/mol

Molar mass of Carbon: 12g/mol

Molar mass of Oxygen: 16g/mol

Molar mass of CaCO3 (Calcium Carbonate) = (40) + (12) + (16)*3 = 100g/mol

Percentage composition of Calcium = \(\frac{40}{100} \ * \ 100 =\) 40% of Calcium

Percentage composition of Carbon = \(\frac{12}{100} \ * \ 100 =\) 12% of Carbon

(For the next one, there are 3 oxygen, so it'd be 16x3 = 48g/mol)

Percentage composition of Oxygen = \(\frac{48}{100} \ * \ 100 =\) 48% of Oxygen

Given :

If a certain gas occupies a volume of 12 LL when the applied pressure is 6.0 atm.

To Find :

The pressure when the gas occupies a volume of 3.0 LL .

Solution :

Since, their is no information of temperature, let us assume it is constant throughout the process.

We know, by ideal gas equation  at constant temperature :

\(\alpha P_1V_1 = P_2V_2\\\\6 \times 12 = P_2 \times 3\\\\P_2 = 24\ atm\)

Therefore, the pressure when the gas occupies a volume of 3.0 LL is 24 atm.

As per the given reaction, 2 moles or 46 g of LiOH is needed to completely react with CO₂. Then, 25.5 g of CO₂ requires 1.16 moles of LiOH.

Lithium hydroxide is an ionic compound formed by the combination of metallic lithium and water moiety. LiOH easily reacts with carbon dioxide forms an insoluble compound lithium carbonate and water.

As per the given balanced equation of the reaction between LiOH and carbon dioxide, one mole of CO₂ reacts with 2 moles of LiOH.

molar mass of CO₂ = 44 g/mol

molar mass of LiOH = 23 g/mol

mass of 2 LiOH = 46 g.

Then, mass of LiOH needed to react with 25 .5 g of CO₂ = (25.5 × 46) /44 = 26.13 g

Number of moles in 26.13 g of LiOH = 26.13/23 = 1.16 moles.

Therefore, the number of moles of LiOH are needed to react completely with 25.5 g of CO2 is 1.16 moles.

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Assuming a similar number of molecules, the matter that occupies the most space is gas. Option C is correct.

This is because gases have no definite shape or volume, and their molecules are spread out, moving freely in all directions. As a result, gases tend to occupy the entire volume of their container and expand to fill the available space. This is known as the "kinetic molecular theory" of gases.

In contrast, solids and liquids have a definite volume and shape. Solids have a fixed shape and their molecules are packed closely together, while liquids have a variable shape and their molecules are less closely packed. As a result, both solids and liquids occupy less space than gases.

It is worth noting that the volume of a solid or liquid can change under certain conditions, such as changes in temperature or pressure. However, even under these conditions, the space occupied by a solid or liquid is still less than that occupied by a gas. Option C is correct.

The complete question is

Which of the following matters occupies more space, assuming similar number of molecules?

A. Solid

B. Liquid

C. Gas

D. Solid and gas

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The free energy change for the hydrolysis of ATP by using the equation ATP(aq)+H2O(l)→ADP(aq)+Pi(aq) is -64362.77joules.

We can calculate the free energy change of reaction by using the standard free energy by using the below link:

ΔG = ΔG⁰ + RTlnQ, where

R = ideal gas constant = 8.314 J/mol.K

ΔG⁰ = standard free energy = -46.5 kJ = -46500 J

T = temperature = 298 K

Q = ratio of the products to reactants for the given chemical reaction

Q = [0.0019][0.0038] / [0.0089] = 8.1×10⁻⁴

On putting values on the above equation, we get

ΔG = -46500 + (8.314)(298)ln(8.1×10⁻⁴)

ΔG = -46500 + (2477.5)(-7.21)

ΔG = -46500 - 17862.77

ΔG = -64362.77

Hence required value of free energy change is -64362.77 joules.

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Answer:

false

Explanation:

The genotype of 50% of offspring will be Gg, 25% will be gg, and 25% will be GG. Hence, it is true.

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. In other words, it is the genetic makeup of an organism. Phenotypes are determined by genotypes.

There are three different genotype types: homozygous dominant (PP), homozygous recessive (PP), and heterozygous (Pp). Examples of genotypes are hair color, skin color, height, hair texture, and blood group.

When two parents who are both Gg (Bb) for a gene are crossed, then the genotype of their offspring will be GG, gg, Gg. Hence, it is true.

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Answer: A

Explanation:

The -ane suffix implies that the compound has only single bonds for carbon-carbon bonds. The but- prefix implies that the compound consists of four carbons. Since 4 bonds are required for each carbon, there will be a total of 10 hydrogen atoms: 3 on each carbon at the end of the chain and 2 for each carbon in the middle of the chain. Thus, butane is A.

Answer:

I dont understand what the question means

Explanation:

Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

Answer:

silver can be stretched into thin wires.