what is the form of
energy that
refers to the
motion of
particles

Answer:

extensive properties such as mass and volume depend on something like perhaps the amount of what's measured. physical properties can be measured without changing substance chemical identity.

metals are the elements which exhibit degree of metallic behavior is know as metals. non metals are such elements which do not posses any metallic behavior and mekkloids are those elements that posses some of the properties like metal. but they act either like metals or non metals n they also have the same physical properties

Answer:

3. nucleus

Explanation:

The nucleus contains all the genetic information.

Reactions according to Bronsted are those in which there is an exchange of H+ ions. The Bronsted acid will be the substance that donates H+ ions and the base will be the compound that receives them.

As a result we will have a conjugated acid and a conjugated base. The conjugate acid will be the former base that just received the H+ ions. The conjugate base will be the former acid that donated its H+ ions.

Now let's look at the reaction. On the reactants side the compound that can donate H+ ions will be HSO3- and the compound CN- will be the one that receives them. Therefore, HSO3 will be the Bronsted acid (A) and CN will be the base (B).

HSO3 ---> A

CN -----> B

Now let's look at the product side. The compound that received the H+ ions will be the compound HCN, so this will be the conjugate acid (Ac). And the compound that lost its H+ ions is SO3, so it will be the conjugate base (Bc).

HCN --->Ac

SO3 ---->Bc

Comparing the analysis that we did with the reaction we will have that:

So, the answer will be option number 5

The main difference among the chemical spill kit and a biohazard cleanup kit is that they vary in their actions and are used to clean different materials.

A chemical spill kit is designed to clean up spills of hazardous chemicals and other dangerous substances. Whereas a biohazard cleanup kit is designed to clean up spills of biological materials, such as blood, urine, and other bodily fluids.

A chemical spill kits typically contain absorbent materials, such as pads and pillows, that can be used to soak up the spilled substance.  Whereas a biohazard cleanup kit contains disinfectants, absorbent materials, and personal protective equipment to protect the user from direct exposure to the potentially infectious materials.

Therefore, both chemical spill kits and biohazard cleanup kits were designed to clean up hazardous materials, they are designed for different types of materials and used different tools and materials to safely clean up the spills.

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The answer is 1.25e-8.

Answer:

Accuracy of a measured value refers to how close a measurement is to the correct value. The uncertainty in a measurement is an estimate of the amount by which the measurement result may differ from this value. Precision of measured values refers to how close the agreement is between repeated measurements.

Explanation:

The Passengers the Balogna could carry if it were filled with hydrogen, and also if it were filled with helium are

\(\begin{tabular}{|l|l|} Passengers with $\quad \mathrm{H}_2:$ & 1007 \\ Passengers with $\mathrm{He}:$ & 928 \\\end{tabular}\)

(h) length of cylinder =100M

(r) radius of cylinder =15M

the volume of a cylinder: \($\pi r^2 \mathrm{~h}=\frac{22}{7} \times(15 \mathrm{~m})^2 \times 100 \mathrm{~m}$$=70714.3 \mathrm{~m}^3$\)

mass of air displaced

\(\begin{aligned}& =1.23 \mathrm{~kg} / \mathrm{m}^3 \times 70714.3 \mathrm{~m}^3 \\& =86978.57 \mathrm{Kg}\end{aligned}\)

when gas is H_2:

Let us assume a number of passengers =x

then, \($x \times 80 \mathrm{Kg}+70714.3 \mathrm{~m}^3 \times 0.090 \frac{\mathrm{kg}}{\mathrm{m}^3}=86978.57 \mathrm{~kg}$\)

x=1007.68 or 1007 people

when gas is{He}_e

then \($\quad x \times 80 \mathrm{~kg}+70714.3 \mathrm{~m}^3 \times 0.18 \frac{\mathrm{kg}}{\mathrm{m}^3}=86978.57 \mathrm{~kg}$\)

x=928.125 or 928 people

ANSWER:

\(\begin{tabular}{|l|l|} Passengers with $\quad \mathrm{H}_2:$ & 1007 \\ Passengers with $\mathrm{He}:$ & 928 \\\end{tabular}\)

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Explanation:

CaCl2 = 6.02 x 1023 this should be it

The value of x should be 1/9.

The proportion of Californians who are elderly is 0.111.

The probability that a person has received a vaccine shot given that the person is elderly is 70%

The probability that a person has received a vaccine shot given that the person is not elderly is 2%

Probability that a person is elderly given that the person has received a vaccine shot is to be calculated.

Probability that a person is elderly and has received a vaccine shot,

P(E and V)=P(V | E) P(E)P(V | E) = 70%, P(E) = 0.111, soP(E and V) = (0.7) (0.111) = 0.0777

Probability that a person has received a vaccine shot, P(V) = P(E and V) + P(NE and V) P(NE) = (0.7) (0.111) + P(NE and V) P(NE) = 0.0777 + P(NE and V)P(NE and V) = P(V | NE) P(NE)P(V | NE) = 2%, soP(NE and V) = (0.02) (1 - 0.111) = 0.0178P(V) = 0.0777 + 0.0178 = 0.0955

Probability that a person is elderly given that the person has received a vaccine shot, P(E | V) = P(E and V) / P(V) = 0.0777 / 0.0955 = 0.8148(a) P(Bc|A) is the probability of driver’s blood alcohol percentage is not exceeding the legal limit, given that the breath analyzer indicates that legal limit is exceeded.

(b) We know that P(A|B) = P(Ac|Bc) = 0.95 and P(B) = 0.05P(A) = 1 - P(Ac) = 1 - 0.95 = 0.05P(Bc|A) = P(Ac|Bc) P(Bc) / P(A)P(Bc) = 1 - P(B) = 1 - 0.05 = 0.95P(Bc|A) = 0.95 × 0.95 / 0.05 = 18.05(c) P(B|A) = x and P(A) = 0.05P(Ac) = 0.95, P(B|Ac) = 0P(B|A) = P(B and A) / P(A)P(B and A) = P(B|A) P(A) = x (0.05)P(Bc|Ac) = 1 - x = P(Ac|Bc) = P(Bc|Ac) P(Ac) / P(Bc) = (1 - x) (0.95) / 0.95P(B) = P(B and A) + P(B and Ac) = x (0.05) + (1 - x) (0.95) = 0.95 - 0.9 x

Therefore,0.9 x = 0.95 - 0.05x = 1/9

Hence, the value of x should be 1/9.

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Answer:

6 M

Explanation:

n = m/M

m= 60g

M(NaOH)= 23 + 16 + 1 = 40

n= 60/40 = 1,5 mol

Therefore c = n/ V = 1,5/ 0,250 = 6

Answer:

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

Explanation:

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia :)

Answer:

Natural selection is the process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Explanation:

Increasing the particle size of the column packing in an HPLC column affect the terms of the van Deemter equation such as  B is unchanged; A and C are increased. The answer is D.)

In the van Deemter equation, the terms A, B, and C represent various factors that contribute to band broadening in an HPLC column. Increasing the particle size of the column packing affects the terms as follows:

A - Eddy diffusion (A) is directly related to particle size; as particle size increases, A increases.
B - Longitudinal diffusion (B) is not significantly affected by the particle size of the column packing, so it remains unchanged.
C - Resistance to mass transfer (C) increases with increasing particle size, as it takes longer for solutes to equilibrate between the stationary and mobile phases.

Thus, the correct option is D, where B is unchanged, and both A and C are increased.

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Answer:could it be kilo

Explanation:it looks like it has the least letters

Answer:

4.70 grams of NH4Cl is needed to prepare 350 mL of a 0.25 M ammonium chloride solution.

We need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To determine the mass of NH4Cl needed to prepare the solution, we us use the formula:

m=M x V x MM ... (i)

where,

m= mass in grams

M=molarity of solution

MM= molar mass of compound

V= volume in litres

The number of moles of NH4Cl needed can be calculated using:

  Moles = Molarity x Volume ...(ii)

  Moles = 0.25 mol/L x 0.350 L

  Moles = 0.0875 mol

Hence we can replace M x V with number of moles in equation i.

The molar mass of NH4Cl is :

  Molar mass of NH4Cl = (1 x 14.01 g/mol) + (4 x 1.01 g/mol) + (1 x 35.45 g/mol)

  Molar mass of NH4Cl = 53.49 g/mol

We have all the variables

Putting them in equation i.

Hence,

  Mass (g) = Moles x Molar mass

  Mass (g) = 0.0875 mol x 53.49 g/mol

  Mass (g) = 4.68 g

Therefore, you would need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

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1. An increase in concentration increases the speed of reaction.

2. When temperature increases, average speed of molecules increases.

3. Average kinetic motion of molecules in a solution can be measured by measuring the heat in the solution.

As concentration increases, number of molecules in the solution increase, hence the reaction becomes faster. Since these factors increase in value, the frequency of collisions between the reactant molecules in the solution will increase, so the probability of collisions in right orientation and with right energy will be higher. Increase in temperature will increase the average speed and kinetic energy of the  molecules in solution. At constant volume, increased speed of reactant molecules in the solution will increase the probability of collisions in right orientation and right energy. Average kinetic energy of molecules in a solution can be measured using the equation, E=kT , where k = Boltzmann constant.

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The main assumption to make is that the density of 5% vinegar is equal to the density of water. Then, for the purposes of the calculation, it is easiest to assume a certain volume of 5% vinegar is used. With these assumptions, we can calculate that the molarity of the solution is 0.83 M.

To calculate the molarity (c) of the solution, we need the number of moles (n) of solute and the volume (V) of the solution:

c = n/V

If we assume that we have 100 mL of 5% vinegar and that its density (d = 1.00 g/mL) is equal to the density of water, we can calculate the mass of the solution (m) using its density and volume (V = 100 mL = 0.100 L):

d = m/V ⇒ m = d*V

m = 1.00 g/mL * 100 mL

m = 100 g

Now we can use the mass and mass percentage (%m = 5% = 0.05) to calculate the mass of acetic acid (AcOH) present:

m(AcOH) = %m * m(solution)

m(AcOH) = 0.05 * 100 g

m(AcOH) = 5 g

Using the mass of AcOH we can calculate the number of moles (n) present by using the molar mass of AcOH (M = 60 g/mol):

n = m/M

n = 5 g / 60 g/mol

n = 0.083 mol

Finally, we calculate the molarity:

c = 0.083 mol / 0.1 L

c = 0.83 M

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It is not possible for a salt with the formula M₃X (e.g., Na₃PO₄) to have a face-centered cubic (fcc) lattice of X anions with M cations in octahedral holes because the coordination number of the fcc lattice is 12, which is incompatible with the coordination number of the octahedral holes, which is 6.

In an fcc lattice, each ion is surrounded by 12 nearest neighbors, which are arranged in a regular pattern of equilateral triangles. These 12 nearest neighbors are all cations, and there are no anions in the immediate vicinity. In contrast, in an octahedral hole, each cation is surrounded by 6 nearest neighbors, which are all anions.

Therefore, it is not possible for a salt with the formula M₃X to have an fcc lattice of X anions with M cations in octahedral holes because the coordination numbers are incompatible. Instead, salts with this formula typically have a simple cubic or body-centered cubic lattice, where the coordination number of the cations is 6 and the coordination number of the anions is 6.

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Answer:

Melting

Explanation:

The phase change from a solid to a liquid is called melting, also known as fusion. During this phase change, the substance absorbs heat energy, which causes the particles in the solid to vibrate more and overcome the attractive forces holding them in a fixed position. As a result, the particles gain enough energy to break their bonds and move freely, causing the solid to become a liquid. The temperature at which this phase change occurs is known as the melting point, and it varies depending on the substance.

Steel ball bearings and marbles can be separated through manual sorting due to their difference in appearance.

Before answering the question, let us define the given choices.

The given separation techniques are not suitable for the separation of steel balls bearings, and marbles. Instead, the sorting separation technique must be used. This is used for manually sorting coarse materials based on their physical characteristic, which in this case is their difference in appearance.

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Answer:

metaloides

Explanation:

Answer:

The distilled water will be boiled faster as it does not contain any non - volatile solute.

- The salty water contains different non - volatile salts in it.

- Due to the presence of these salts, its vapour pressure will be decreased and boiling point will be elevated.

- So, salty water will take more time to boil.

- On the other hand, distilled water does not have any such solute and due to this its vapour pressure will not be affected.

- Hence, it will boil fast than salty water.

Hydrogen peroxide and water both contain the same two elements. The chemical formulas of hydrogen peroxide and water are respectively H2O2 and H2O. The two compounds have distinct physical and chemical properties. Here is a long answer to the question posed.

Water is a colorless, odorless, and tasteless liquid that is vital for life. Its melting point is 0 degrees Celsius, while its boiling point is 100 degrees Celsius. Water is the most prevalent chemical substance on Earth, with about 71% of the planet's surface covered by it.

Hydrogen peroxide is a pale blue liquid that is slightly more viscous than water. It has a bitter taste, and its odor is similar to that of bleach. The boiling point of hydrogen peroxide is 150.2°C, while the melting point is -0.43°C. Hydrogen peroxide is a powerful oxidizer that is commonly used as a bleaching agent, disinfectant, and antiseptic.


Chemical formulas are utilized in a variety of scientific applications, including chemical reactions and product descriptions. An incorrect chemical formula can have significant ramifications, potentially resulting in the formation of a hazardous substance.

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To calculate the molarity (M) of the ammonium sulfate in the solution, The molarity of the ammonium sulfate in the aqueous solution is 0.926 M.

To calculate the molarity (M) of the ammonium sulfate in the solution, we need to use the formula:

Molarity (M) = moles of solute / volume of solution (in liters)

First, we need to determine the number of moles of ammonium sulfate in the solution. We can do this by converting the given mass of ammonium sulfate to moles using its molar mass. The molar mass of ammonium sulfate  is approximately 132.14 g/mol.

Number of moles = mass / molar mass

Number of moles = 98.1 g / 132.14 g/mol

Next, we need to convert the given volume of the solution from milliliters to liters:

Volume of solution = 105.6 ml = 105.6 ml / 1000 ml/L = 0.1056 L

Now we can calculate the molarity:

Molarity = moles / volume of solution

Molarity = (98.1 g / 132.14 g/mol) / 0.1056 L

After performing the calculation, the molarity of the ammonium sulfate in the solution is found to be approximately 0.926 M.

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The VSEPR model explains that each atom in a molecule with a central atom will achieve a geometry of the molecule which minimizes the repulsion between electrons of the molecule in the valence shell of that atom.

VSEPR Model can be used to predict the structure of any molecule with a central metal atom present in it. In the polyatomic molecules which is the molecules made up of three or more atoms and one of the constituent atoms is determined as the central atom to which all other atoms belonging to the molecule are linked together.

VSEPR theory explains five main shapes of simple molecules consisting the central atom. Those five structure basically are linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral geometry. Using the VSEPR theory, we predict that the electron bond pairs and lone pairs on the center atom will help us to predict the shape of a central atom of a molecule. Using this theory the shape of a molecule is determined by the location of the nuclei and its electrons of the molecule.

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Answer:

The movement of air through Earth's -- or any planet's -- atmosphere is called wind, and the main cause of Earth's winds is uneven heating by the sun. This uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

Explanation:

Explanation:

you did there a copy/paste chaos.

anyway, whatever number in the sequence it is, the right answer is of course :

Red stripes reflect red and absorb all other light, as does the blue square with blue; white stripes and stars reflect all wavelengths; and the flagpole absorbs all wavelengths.

that is why white and black are scientifically not colors.

white is in fact all colors in one (because all light is reflected there), and black is the lack of any light and therefore color. this is like at night, when a lot of cars are driving, but one does not have any lights on - you can find that car by the dark spot it creates in the middle of all the light of the other cars. black means we see no light at all at that spot.

To solve this we must be knowing each and every concept related to reflection. Therefore, the correct option is option A among all the given options.

Any surface will reflect light according to two criteria. They are known as the laws of reflection. Regular reflection occurs when any object's light reflects off of polished surfaces.

Because of the smooth surface's ability to reflect light, we can see the object's reflection in the mirror when light rays strike it. A plane mirror will reflect an image in which the distance of the object from the mirror is equal to the vertical distance from either the mirror.

Red stripes reflect red and absorb all other light, as does the blue square with blue; white stripes and stars reflect all wavelengths; and the flagpole absorbs all wavelengths.

Therefore, the correct option is option A.

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0.00371 mol and 0.0244 mol are contained in each number of grams of fructose c6h12o6, molar mass 180.2 g/mol, a carbohydrate that is about twice as sweet as table sugar.

What do you mean by carbohydrates?
A carbohydrate is a biomolecule composed of carbon (C), hydrogen (H), and oxygen (O) atoms, with a hydrogen-oxygen atom ratio of 2:1 (as in water) and thus the empirical formula Cm(H2O)n. However, not all carbohydrates (for example, uronic acids and deoxy-sugars like fucose) meet this exact stoichiometric requirements, and not all substances that do meet this definition are automatically classified as carbs (e.g. formaldehyde and acetic acid).

To get number of moles,we have-

a)   Mole=wb/mb.            

=0.670/180.2

=0.00371 mol

b)  Mole=wb/mb

=4.40/180.2

=0.0244 mol

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