You are planning to start a birthday card business. You need to make $1200./week (over 5 days). If you can make 12 cards per hour and
you work 8.50 hours per day, what is the price you need to charge for each card? $
per card

Answer:

10 ms-1

Explanation:

Kinetic energy = 1/2 × m × v^2

1 = 1/2× 20 ×10^ -3 × v^2

v ^ 2 = 100

v = 10 ms-1

note : convert grams in to kg before substitution as above

Given:

Kinetic energy,

Mass,

We know the formula,

→ \(K.E = \frac{1}{2} mv^2\)

By putting the values, we get

       \(1 = \frac{1}{2}\times 20\times 10^{-3}\times (v)^2\)

     \(v^2 = 100\)

       \(v = \sqrt{100}\)

       \(v = 10 \ m/s\)

Thus the above response is correct.

Learn more about K.E here:

https://brainly.com/question/24997625

Answer:

c2-c

Explanation:

A mental that lost two electrons just joking I don't k ow but I think it ain't the first o e because of comment sense to the 5th power

Answer:

A and B

Explanation:

metal form ion by lossing elecron

non metal form ion by gaining electron

A) If we were to fill in the blanks:(3) because they all have the same number of [valence electrons] (2) that show elements that are [chemically similar] (5) are sometimes called families. Periods are [rows] (6) that show elements with the same number of [electron shells or energy levels]

The statements provided seem incomplete, and it's not clear what exactly needs to be filled in the blanks. However, I can provide some general information about electronegativity, groups, periods, and families in the context of the periodic table.

Electronegativity: Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. It generally increases from left to right across a period and decreases from top to bottom within a group on the periodic table.

Elements with higher electronegativity tend to attract electrons more strongly, whereas elements with lower electronegativity have a weaker attraction for electrons.

Groups: Groups in the periodic table refer to the vertical columns. Elements within the same group have similar chemical properties and the same number of valence electrons, which are the electrons in the outermost shell of an atom.

This similarity in valence electrons contributes to similar chemical behavior among elements in the same group.

Periods: Periods in the periodic table refer to the horizontal rows. Elements within the same period have the same number of electron shells or energy levels. However, elements within the same period may have different chemical properties because they have different numbers of valence electrons.

Families: Families are sometimes used as an alternative term for groups. They are groups of elements that share similar chemical properties due to their similar electronic configurations and valence electron arrangements.

For more such questions on elements visit:

https://brainly.com/question/18096867

#SPJ11

The energy released in the formation of a nucleus from its component nucleons is called the binding energy of the nucleus. The mass defect is 2.0 x 10⁻² kg/mol​. The correct option is D.

The mass defect is defined as the mass lost as an equivalent amount of energy during the formation of a given nucleus from the component nucleons.

The equation connecting binding energy and mass defect is:

Binding energy = Δm × c²

c - Velocity of light

Δm - Mass defect

Δm = Binding energy / c²

= 1.8 x 10¹⁵ / (3 × 10⁸)²

= 2.0 x 10⁻² kg/mol

Thus the correct option is D.

To know more about mass defect, visit;

https://brainly.com/question/16485729

#SPJ9

Answer:

See explanation and image attached

Explanation:

The reaction between benzophenone and phenylmagnesium bromide is a Grignard reaction.

A Grignard reagent is any alkyl magnesium halide compound. In this case, the Grignard reagent is phenylmagnesium bromide.

Reaction of Grignard reagent with a ketone yields all alcohol. Thus, the reaction of benzophenone with phenylmagnesium bromide yields triphenyl methanol.

The mechanism of the reaction and all electron movements are shown in the image attached to this answer.

The equation for the equilibrium constant (K) of the reaction studied in this exercise can be written as follows: K = ([\(CI_20\), 2-] * [\(H_20\)(1)]) / ([\(C0_4^ 2\)-] * [Ht])

In this equation, the concentrations of the species involved in the reaction are represented by the square brackets [ ]. The subscripts indicate the stoichiometric coefficients of each species in the balanced chemical equation.

The reaction being studied involves the following species:

\(C0_4^ 2\)- (ag) + 2Ht (ag) = \(CI_20\), 2- (ag) + \(H_20\)(1)

In the equilibrium constant expression, the concentration of \(CI_20\), 2- is multiplied by the concentration of \(H_20\)(1) and divided by the product of the concentrations of \(C0_4^ 2\)- and Ht. The stoichiometric coefficients in the balanced equation are used as exponents for the concentrations of the respective species.

It is important to note that the concentrations used in the equilibrium constant expression should be in molar units (mol/L) or expressed as partial pressures for gases.

Additionally, the equilibrium constant is specific to a given temperature, and its value provides information about the relative amounts of reactants and products at equilibrium.

For more such question on  equilibrium constant visit:

https://brainly.com/question/3159758

#SPJ8

The statement "increasing the force will increase the moment" is true.

This is because the moment is a measure of the turning effect of a force on an object about a pivot point. It is defined as the product of the force and the perpendicular distance between the force and the pivot point. The unit of moment is the newton-meter (Nm) or the joule (J).When a force is applied to an object, it will produce a moment about the pivot point if the force is not acting along the same line as the pivot point. The magnitude of the moment depends on the force applied and the distance of the force from the pivot point. As the force increases, the moment also increases, provided that the distance from the pivot point remains constant. Conversely, if the force remains constant, but the distance from the pivot point increases, the moment also increases. This is because the perpendicular distance is directly proportional to the moment, meaning that a longer distance results in a larger moment.Therefore, it can be concluded that increasing the force applied to an object will increase the moment produced about a pivot point.

for such more questions on force

https://brainly.com/question/24719118

#SPJ8

a. The de Broglie wavelength of the 50.0 g mass travelling at 0.2 m/s is \(6.626 * 10^{-32} m\).

b. The de Broglie wavelength of the 50.0 g mass travelling at 45 km/s is \(2.949 * 10^{-37} m.\)

c. The de Broglie wavelength of an He atom travelling at 1000 m/s is \(9.961 * 10^{-11} m.\)

The de Broglie wavelength (λ) of a particle can be calculated using the following formula: λ = h / p, where h is Planck's constant (\(6.626 * 10^{-34} J s\)) and p is the momentum of the particle, given by: p = m * v, where m is the mass of the particle and v is its velocity.

(a) For a mass of 50.0 g travelling at 0.2 m/s:

\(p = m * v = 50.0 g * 0.2 m/s = 10 g m/s\)

Converting the mass to kilograms:

m = 50.0 g = 0.0500 kg

Therefore,

\(p = 0.0500 kg * 0.2 m/s = 0.010 kg m/s\)

Using the de Broglie wavelength formula:

λ = \(h / p = 6.626 * 10^{-34} J s / 0.010 kg m/s = 6.626 * 10^{-32} m\)

Therefore, the de Broglie wavelength of the 50.0 g mass travelling at 0.2 m/s is \(6.626 * 10^{-32} m\).

(b) For the same mass travelling at 45 km/s:

Converting the velocity to m/s:

v = 45 km/s = 45,000 m/s

p = \(m * v = 0.0500 kg * 45,000 m/s = 2,250 kg m/s\)

Using the de Broglie wavelength formula:

λ = \(h / p = 6.626 * 10^{-34} J s / 2,250 kg m/s = 2.949 * 10^{-37} m\)

Therefore, the de Broglie wavelength of the 50.0 g mass travelling at 45 km/s is \(2.949 * 10^{-37} m.\)

(c) For an He atom travelling at 1000 m/s:

The mass of an He atom is approximately \(6.646 * 10^{-27} kg\).

\(p = m * v = 6.646 * 10^{-27} kg * 1000 m/s = 6.646 * 10^{-24} kg m/s\)

Using the de Broglie wavelength formula:

λ = \(h / p = 6.626 * 10^{-34} J s / 6.646 * 10^{-24} kg m/s = 9.961 * 10^{-11} m\)

Therefore, the de Broglie wavelength of an He atom travelling at 1000 m/s is \(9.961 * 10^{-11} m.\)

For more question on de Broglie wavelength click on

https://brainly.com/question/16595523

#SPJ11

The mass of 1 atom of copper metal in the given face-centered cubic structure is determined as  1.054 x 10⁻²² g.

The mass of 1 atom of copper is calculated as follows;

mass of 1 atom of copper = molar mass of copper / Avogadro's number

substitute the value of molar mass of copper and Avogadro's number;

mass of 1 atom of copper = (63.5 g/mol) / (6.023 x 10²³)

mass of 1 atom of copper = 1.054 x 10⁻²² g

Thus, the mass of 1 atom of copper is determined as  1.054 x 10⁻²² g.

Learn more about copper metal here: https://brainly.com/question/24856041

#SPJ1

To determine the concentration of vinegar (acetic acid) based on the titration with sodium hydroxide, we need to use the concept of stoichiometry and the volume and concentration of the sodium hydroxide solution.

Let's assume that each drop of the sodium hydroxide solution is approximately 0.03 mL. Based on this assumption, the volume of sodium hydroxide solution used would be:

Volume of NaOH = 43 drops × 0.03 mL/drop = 1.29 mL

Now, we need to determine the moles of sodium hydroxide used in the titration. Using the volume and concentration of the sodium hydroxide solution:

Moles of NaOH = Volume of NaOH (L) × Concentration of NaOH (mol/L)

             = 1.29 mL × (1 L / 1000 mL) × 0.600 mol/L

             = 0.000774 mol

Since acetic acid (CH3COOH) and sodium hydroxide (NaOH) react in a 1:1 molar ratio, the moles of acetic acid present in the vinegar can be determined as well:

Moles of CH3COOH = Moles of NaOH = 0.000774 mol

Finally, we need to calculate the concentration of acetic acid (vinegar) in the solution. Assuming the volume of vinegar is 1 L:

Concentration of CH3COOH = Moles of CH3COOH / Volume of CH3COOH

                      = 0.000774 mol / 1 L

                      = 0.000774 M

Therefore, the concentration of the vinegar (acetic acid) is approximately 0.000774 M.

Answer:

Sodium bicarbonate is an antacid used to relieve heartburn and acid indigestion. Your doctor also may prescribe sodium bicarbonate to make your blood or urine less acidic in certain conditions. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

The mass of water is 1.89g

Mass is a measure of the amount of matter that an object contains

Here given data is 1.23 g of butane reacts with excess oxygen and the reaction is

C₄H₁₀ + 13/2 O₂ →4CO₂ + 5H₂O

Mole of butane = 1.23/58.12g/mol⁻¹

Mole of butane = 0.021mol

We assume complete combustion, and know that each mole of butane gives off 5 mol of water upon combustion.

We know the molar quantity of butane then

5×0.021×18.01 = 1.89g

Mass of water is 1.89g

Know more about mass

https://brainly.com/question/11257617

#SPJ1

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

\(P_1V_1 = P_2V_2\)

Since we are finding the new pressure

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

From the question

2.47 L = 2470 mL

We have

\(P_2 = \frac{765 \times 2.78}{2470} = \frac{2142}{2470} \\ = 0.867206...\)

We have the final answer as

Hope this helps you

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:

it will send the message through the axon

The representation is showing potassium atom (K) and Chlorine atom (Cl) when it ought to show their ions i.e potassium ion (K⁺) and Chlorine ion (Cl¯)

When potassium chloride, KCl dissolves in water, it dissociate to produce potassium ion (K⁺) and Chlorine ion (Cl¯) as shown below:

KCl(aq) —> K⁺(aq) + Cl¯(aq)

The representation given in the question is only showing potassium atom (K) and Chlorine atom (Cl). This makes it wrong as dissolution of ionic compounds in water will results in the corresponding ions of the element that makes up the compound

Please see attached photo

Learn more about dissociation equation:

https://brainly.com/question/25854432

false

cells are made up of nucleus and cytoplasm and it's contained within the cell membrane

The equilibrium constant for the reaction is 0.0052.

Here are the steps to calculate the equilibrium constant for the reaction:

Write the equilibrium constant expression. The equilibrium constant expression for the reaction is:

K = \([SO3]^2 / [SO2]^2 * [O2]\)

Calculate the equilibrium concentrations of the reactants and products. The equilibrium concentration of oxygen is given as 0.25 mol.dm^3.

One can compute the equilibrium concentration of sulfur dioxide by applying the subsequent formula:

.

\([SO2] = (10 mol - 2 * 0.25 mol) / 2 dm^3 = 4.5 mol.dm^3\)

The equilibrium concentration of sulfur trioxide can be calculated using the following equation:

\([SO3] = (2 * 0.25 mol) / 2 dm^3 = 0.5 mol.dm^3\)

Substitute the equilibrium concentrations into the equilibrium constant expression and solve for K.

K = \((0.5 mol.dm^3)^2 / (4.5 mol.dm^3)^2 * (0.25 mol.dm^3)= 0.0052\)

Therefore, the equilibrium constant for the reaction is 0.0052.

Read more about equilibrium constant here:

https://brainly.com/question/3159758

#SPJ1

Answer:

conserved or created/destroyed. We can say that throughout the reaction mass is conserved.

For a chemical reaction in a closed system, mass Connot  be  or destroyed . We can say that throughout the reaction mass is conserved .

During a chemical reaction, atoms are rearranged and bonded together in new combinations, forming different substances. However, the total number of atoms remains the same. This means that the total mass of the reactants must be equal to the total mass of the products.

The law of conservation of mass is based on the principle that atoms are neither created nor destroyed during a chemical reaction. Instead, they are rearranged and redistributed into different chemical species.

It is important to note that while mass is conserved, the substances involved in the reaction may undergo changes in physical state (solid, liquid, gas) or experience changes in energy, such as the release or absorption of heat. These changes do not affect the total mass of the system.

In summary, for a chemical reaction in a closed system, mass cannot be created or destroyed. The law of conservation of mass states that the total mass of the reactants is equal to the total mass of the products, and throughout the reaction, mass is conserved.

This principle is a fundamental concept in chemistry and plays a crucial role in understanding and balancing chemical equations.

For more such questions on chemical reaction visit:

https://brainly.com/question/25769000

#SPJ8

I don't have any favourite compound but yes there is a photo that i like which is my desktop wallpaper.

There are so many diagrams and Compounds which are quite interesting to understand and focus why there are placed here.

Answer:

4-Phenyl-1H-1,2,3-triazole which has a chemical formula of C8H7N3

Explanation:

I like this molecule because it is an easily synthesized molecule that can be used to add groups to the triazole.  When using a base the N-H is deprotonated making it act like a nucleophile.

Answer:

3) The amount of matter within the system remains the same

5) The cycle has a well-defined starting and stopping point.

Explanation:

A closed system is a system that the boundaries of a system cannot be passed by either matter or energy.

Hence, generalisations can be made based on a closed system and the law of conservation of mass which states that matter can neither be created nor destroyed but can only change form.

Answer:

Gold, Platinum, Silver, Ruthenium

Answer:

B.

Explanation:

Hope this helps.

Answer:

has a positive chargeExplanation:

An atom is an indivisible particle and it is composed of mainly three sub atomic particles, they are protons, electrons and neutrons. The proton has a positive charge. The correct option is B.

The particles which are smaller in size than an atom are defined as the subatomic particles. The positively charged subatomic particles are called the protons whereas the negatively charged particles are called electrons and neutrons are chargeless.

It is the protons and neutrons which together make up the nucleus of an atom and hence they are called the nucleons. The number of protons or electrons in an atom is known as the atomic number and the mass of proton is 1.676 × 10⁻²⁴ grams.

It was Rutherford who discovered the protons and the charge of proton is  + 1.602 × 10⁻¹⁹ Coulombs.

Thus the correct option is B.

To know more about protons, visit;

https://brainly.com/question/17298811

#SPJ7

23 degrees Fahrenheit equals -5 degrees Celsius!

Also heres a free meme

Answer:

2.00 L of a gas is collected at 25.0°C and 745.0 mmHg

Explanation:

The correct answer is  a sphybridisation in z coordinate.So to form sphybridisation we need a s orbital and a p orbital  .

In genomics, hybridization is the process by which two complementary single-stranded DNA or RNA molecules bond together to form a double-stranded molecule.The bonding is determined by the correct base pairing between the two single-stranded molecules. When one s and one p orbital in the same main shell of an atom combine to form two new equivalent orbitals, this is referred to as sphybridization.

The newly formed orbitals are known as sphybridized orbitals. It forms linear molecules with a 180° angle. Atomic orbitals include both s and p orbitals. These orbitals represent the most likely region in which we can find an electron of that atom. The primary distinction between s and p orbitals is that s orbitals are spherical in shape, whereas p orbitals are dumvell-shaped.So to form  sp hybridisation we need a s orbital and a  p orbital .

Learn more about hybridisation  here :-

https://brainly.com/question/14140731

#SPJ9

Here is the atomic model in the picture.

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.