ali folled a ball down the hill the praph on the next page shows the kietic and potential energy of moving ball

Answer:

Condensation

Explanation:

Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.

Answer:

Explanation:

You have to find the mass in the mole before the molarity and then in the mole.

Answer:

the elephant toothpaste would go everywhere

Answer

A) Auric chloride

Explanation

Gold and chlorine form the ionic compound AuCl₃. The name of this compound in the common system is Auric chloride. While the name of this compound in the IUPAC system is Gold (III) chloride.

Hence, the correct answer is option A) Auric chloride

a. The rate law for this reaction is: Rate = k[Cl] [H₂]. This means that the rate of the reaction is directly proportional to the concentrations of both Cl and H₂ molecules.

Rate law is an equation that describes the rate of a chemical reaction as a function of the concentrations of reactants. The rate law allows us to describe how the rate of a reaction changes when the concentrations of reactants are changed. It is derived from the rate equation, which is a mathematical expression that can be used to calculate the rate of a reaction from the concentrations of the reactants and the rate constant.

b. The rate law for this reaction is: Rate = k[O] [Os]. This means that the rate of the reaction is directly proportional to the concentrations of both O and Os molecules.
c. The rate law for this reaction is: Rate = k[NO₂]₂. This means that the rate of the reaction is directly proportional to the square of the concentration of NO₂ molecules.

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Complete Question:

Answer:

https://courses.lumenlearning.com/boundless-biology/chapter/atoms-isotopes-ions-and-molecules/

Explanation:

The partial pressure of nitrogen, N₂ is 5moles .

A measure of concentration is the mole fraction. The mole fraction, which is denoted by "X," is used to calculate the relative amounts of solute and solvents in a solution. The ratio of the total number of moles in the solution to the number of moles of a particular component is known as the mole fraction.

Total moles of oxygen ,nitrogen and neon are 5+ 2+ 3+ =10 moles.

\(X_{N2}\) = moles of N2/total moles of solution

=> 2/10 = 5moles

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Answer: The value of \([H_{3}O^{+}]\) is \(6.025 \times 10^{-12}\) M and \([OH^{-}]\) is \(1 \times 10^{-14}\).

Explanation:

pH is the negative logarithm of concentration of hydrogen ion.

It is given that pH is 11.22. So, the value of concentration of hydrogen ions is calculated as follows.

\(pH = - log [H^{+}]\\11.22 = - log [H^{+}]\\conc. H^{+} = 6.025 \times 10^{-12}\) M

Let the value \(6.025 \times 10^{-12}\) is considered as equal to 0. Hence, the relation between pH and pOH value is as follows.

pH + pOH = 14

0 + pOH = 14

pOH = 14

Now, pOH is the negative logarithm of concentration of hydroxide ions.

Hence, \([OH^{-}]\) is calculated as follows.

\(pOH = - log [OH^{-}]\\14 = - log [OH^{-}]\\conc. OH^{-} = 1 \times 10^{-14} M\)

Thus, we can conclude that the value of \([H_{3}O^{+}]\) is \(6.025 \times 10^{-12}\) M and \([OH^{-}]\) is \(1 \times 10^{-14}\).

Answer:

Crystalline solids have regular ordered arrays of components held together by uniform intermolecular forces, whereas the components of amorphous solids are not arranged in regular arrays.

Explanation:

Answer:

6.5

Explanation:

half of 5 is 2.5, half of 8 is 4. 2.5+4=6.5

:)

The volume of the propane gas in liters at STP when the initial volume has 1.50 L at 4.315 X 10⁵ Pa and 15.00⁰C is 4.7908L

It is given that the volume of Propane gas V₁ is 1.5L at the pressure P₂ is 4.315 x 10⁵ Pa at temperature 15⁰C. We need to find the volume of the gas (V₂) at Standard Temperature and Pressure. The values of Standard temperature is 20⁰C and standard Pressure is 101325 Pa. Let us consider these values to be P₂ and T₂. To find volume of the gas at constant temperature and pressure we need to use the following formula:

V₁P₁T₁ = V₂T₂P₂

On substituting the values we get,

1.5 x 4.315 x 10⁵ x 15 = V₂ x 20 x 101325

2026500V₂ = 97.085 x 10⁵

V₂ = 97.085 x 10⁵/2026500

V₂ = 4.7908 x 10⁵/10⁵

V₂ = 4.7908L

Therefore the volume of the propane gas at standard temperature and pressure is 4.7908L.

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The volume of the gold sample, given the theoretical density and the mass, is 1.23 ml

When given the theoretical density of a gold sample and the mass, you can use the formula for density to find the volume of the gold sample.

The volume for density is:

Density = Mass / Volume

Mass = 23. 82 g

Density = 19. 30 g / ml

The volume is:

19.30 = 23 .82 / Volume

Volume x 19. 30 = 23. 82

Volume = 23. 82 / 19. 30

= 1.23 ml

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The full question is:

A sample of gold has a mass of 23.82 g, given that the theoretical density is 19.30 g/ml, what is the volume of the gold sample?

Answer:

7N to the right

Explanation:

1 is true

2 is d 7

3 is

            1             e

            2             b

            3             d

            4             a

            5             c

From the equation 2PbS + 3O2 ⟶ 2Pb + 2SO3 we can produced 8.12 g of lead  if 2.54 g of PbS is burned with 1.88 g of O2.

To find the mass of lead produced, we need to find the limiting reactant (i.e. the reactant that is consumed first).

We can find the limiting reactant by calculating the number of moles of each reactant and then using the mole ratio from the balanced equation.

Number of moles of PbS = mass / molar mass = 2.54 / 239.27 = 0.0106 mol

Number of moles of O2 = mass / molar mass = 1.88 / 32 = 0.0588 mol

From the balanced equation, the mole ratio of PbS to O2 is 2:3.

Therefore, for every 2 moles of PbS, we need 3 moles of O2.

We can use this information to calculate how many moles of O2 are needed for 0.0106 moles of PbS.0.0106 mol PbS × (3 mol O2 / 2 mol PbS) = 0.0159 mol O2.

Since the actual amount of O2 we have is less than what is needed (0.0159 mol), O2 is the limiting reactant.

This means that PbS is in excess and we can calculate the mass of lead produced using the amount of O2 that reacted.

The balanced equation tells us that 3 moles of O2 produce 2 moles of lead.

Therefore,0.0588 mol O2 × (2 mol Pb / 3 mol O2) = 0.0392 mol PbFinally, we can calculate the mass of lead produced using the number of moles and the molar mass of lead.mass of Pb = number of moles × molar mass= 0.0392 mol × 207.2 g/mol= 8.12 g.

Therefore, 8.12 g of lead will be produced if 2.54 g of PbS is burned with 1.88 g of O2.

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Explanation:

sexual reproduction has minimal changes of mutations compared to asexual reproduction

Answer:

sexual reproduction has minimal changes of mutations compared to asexual reproduction

I hope this helps

Answer:

The first and most obvious pattern I see is that all gas giants have an atmosphere mainly made up of hydrogen

The second thing I notice is that all the rocky planets have a significant amount of Nitrogen in their atmospheres except Mercury.

The third thing I notice is that all planets have one element that makes up 75% or more of its atmosphere except Mercury.

(If this is good, may I have brainliest, please? I'm kinda poor..)

Answer:

It's hard to find patterns in the solar system's atmosphere but I think above found a lot of them.

Answer:

The adhesive is made up of two different layers.

The lower layer is made up of vertically aligned nanotubes.

The upper layer is made up of curly, spaghetti-like, nanotubes.

Answer:

B,C,D

Explanation:

The acid dissociation constant(Ka) is 0.0095

The reaction for this dissociation of acid is

HSO4 ⇄H+ + SO4 -2

The dissociation constant can be determined from the following expression

\(Ka= \frac{[H+] [SO4]-2}{[HSO4}\)  

[H+] = 10-PH

       = 10-1.35

[H+]  = 0.0447

[H+] = 0.0447 mol / L

From equation, [H+] = [SO4-2] = 0.0447 mol / L

[SO4-2] = 0.0447 mol / L

From the values of [H+], [SO4-2] and [HSO4] Ka can be calculated as follows,

Ka = 0.0447 * 0.0447 / 0.200

     = 0.0019 / 0.200

     = 0.0095

Hence the value of the acid dissociation constant (Ka) for the given reaction is  0.0095

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3 moles of I2 will be formed from 3 moles of chrlorine gas.

Explanation:

This is because, when you balance the given equation it allows for the mole ratio between the two given elements to be 1:1 so therefore 3 moles of chlorine gas will produce 3 moles of I2.

Answer:

A gas is collected at 22.0 °C and 745.0 mm Hg. When the temperature is changed to 0 °C, what is the resulting pressure? final pressure would result if the original pressure was 750.0 mm Hg? to 25.0 °C.

Explanation:

Answer:

The scientist classify the types of soil based on the texture of the soil, the type of Rock from which they are formed and the type of organisms which live in the soil. For example red soil is formed by the weathering of reddish type of Rock which is found in that territory.

Explanation: google and me.....hope this helps

One factor which scientists used to classify orders of is Soil texture

Soil texture is a classification strategy that scientists used to determine soil classes orders based on their physical texture.

Soil texture and soil structure are unique properties of the soil that will have a great effect on the behavior of soils, such as water holding capacity, nutrient retention and supply, drainage, and nutrient leaching.

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Answer:Electrical conductivity of earth materials is influenced by the metal content (sulfides) in the rock, porosity, clay content, permeability, and degree of pore saturation. hope this helps

Explanation:

Answer:

The answer is the second one

Explanation: The concentration of a solution helps us to determine the collision speed between particles in a molecule or compound. Knowing the concentrations of components in solutions can help determine the health of the world.

Answer:

\(HCl conc=2.2M\)

Explanation:

From the question we are told that:

Mass of zinc \(Mass_{z_n}=2.5g\)

Initial conc of HCl \(HConc_1=6.0M\)

Initial volume of HCl \(Hvol_1=20.0mL\)

Molar mass of zinc \(M_{Z_n}=65.38g/mol\)

Generally the equation for reaction  is mathematically given by

\(2HCL+Zn\implies ZnCl_2 +H_2\)

Generally the equation for moles of zinc \(m_{z_n}\) is mathematically given by

\(m_{z_n}=\frac{Mass_{Z_n}}{M_{Z_n}}\)

\(m_{z_n}=\frac{2.5g}{M_{65.38}}\)

\(m_{z_n}=0.038molZn\)

Generally the equation for moles of \(m_{HCl}\) is mathematically given by

\(m_{HCl}=HConc_1*Hvol_1\)

\(m_{HCl}=6.0M*20.0mL\)

\(m_{HCl}=6.0M*20.0*10^{-3}L\)

\(m_{HCl}=0.12\ mol\ HCl\)

Generally the reacted moles of HCl \(HCl_[reacted]\) is mathematically given by

Since

Zn:HCl =1:2

Therefore

\(HCl_[reacted]=0.038*\frac{2}{1}\)

\(HCl_[reacted]=0.076mol \ HCl\)

Generally the moles of HCl after Zn oxidization X is mathematically given by

\(x=0.12-0.076\)

\(x=0.044 mol HCl\)

Generally the conc of hydrochloride acid X is mathematically given by

\(X=\frac{0.044}{0.020}\)

\(X=2.2 M Hcl\)

Therefore Conc of HCl

\(HCl conc=2.2M\)

The answer is: The electronic configuration of Nitrogen is \(1s^22s^22p^3\).

Electronic configuration: The electronic configuration is defined as the distribution of electrons of an atom in the atomic or molecular orbitals and is written using the labels for the subshell.

How to decide which orbital is filled first?

(Shown in image)

         \(1s^22s^22p^3\)

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Nitrogen's complete electron configuration is 12s2s22p3.

The shorthand electron configuration for noble gases is [He] 2s22p3. Nitrogen has an atomic number of 7. The nitrogen atoms' nucleus contain this many protons. An atom that is neutral has an equal number of protons and electrons. Thus, the ground state electron configuration will consist of 7 electrons in the suitable s and p orbitals (state of lowest energy). For nitrogen, the entire electron configuration is 1s22s22p. Scientists may easily express and explain how the electrons are organized around the nitrogen atom's nucleus by using the configuration notation for nitrogen (N). As a result, it is simpler to comprehend and forecast how atoms will cooperate to form chemical bonds.

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Answer:

There are different ways to write this:

N\(a^{+}\) + C\(l^{-}\) + H2O

N\(a^{+}\)(aq) + C\(l^{-}\)(aq)

Explanation:

(aq) means aqueous in water, which means dissolved in water.

Hope this helps.

- profparis

Answer:

The reaction N2 + 3H2 → 2NH3 is an exothermic reaction, which means that it releases heat. The amount of energy released is called the enthalpy of reaction, and it is typically measured in kilojoules per mole (kJ/mol). The enthalpy of reaction for the Haber-Bosch process, which is the industrial process used to produce ammonia, is -46.2 kJ/mol. This means that for every mole of ammonia produced, 46.2 kJ of heat is released.

The energy released during the Haber-Bosch process is used to heat the reactants and to drive the reaction forward. The reaction is exothermic because the bonds in the products (NH3) are stronger than the bonds in the reactants (N2 and H2). When the reactants are combined, the energy released when the bonds in the products form is greater than the energy required to break the bonds in the reactants. This excess energy is released as heat.

The Haber-Bosch process is a very important industrial process, and it is used to produce ammonia on a large scale. Ammonia is used in a variety of products, including fertilizers, explosives, and plastics. The exothermic nature of the Haber-Bosch process makes it a very efficient way to produce ammonia.

Explanation:

Answer:

(a) GaF3, gallium(III) fluoride

(b) LiH, lithium hydride

(c) AlI3, aluminum(III) iodide

(d) K2S, potassium sulfide