Which of the following is the furthest away from Earth?

The closest star

One of Jupiter's moons

A large asteroid in the asteroid belt

Uranus

Answer: The gas generated by two antacid tablets has a smaller volume.

Explanation:

Since the antiacid is the limiting reagent, we know that the more tablets there are, the more gas there will be.

This means that there will be more gas generated by the four antiacid tablets when compared to the two antiacid tablets, which gives us that the gas generated by the two antiacid tablets has a smaller volume.

Answer: This suggests that low hydrogen peroxide treatments used for shorter periods of time have the least potential to damage teeth. According to another study, scientists found that a 5% hydrogen peroxide solution was just as effective at whitening teeth as a 25% solution.

Explanation:

Photosynthesis is a process used by all green plants and a few other autotrophic organisms to create nutrition from carbon dioxide, water, and sunlight.  Energy is absorbed during the reaction, making the energy of the products greater than the energy of the reactants. The correct option is D.

Phototrophs transform light energy into chemical energy through a process called photosynthesis, which is then used to power cellular processes. In the form of sugars, which are made from water and carbon dioxide, the chemical energy is kept in reserve.

When plants employ light energy to transform carbon dioxide and water into glucose and oxygen, this process is known as photosynthesis. Chloroplasts, tiny cellular organelles, are found in leaves.

Thus the correct option is D.

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The names of the given compounds are as follows:

a. NaBr = Sodium bromide

b. Rb\(_2\)O = Rubidium oxide

c. CaS = Calcium sulfide

d. AlI\(_3\) = Aluminium iodide

The formulas for the given compounds are as follows:

e. Strontium fluoride = SrF\(_2\)

f. Aluminum selenide = Al\(_2\)Se\(_3\)

g. Potassium nitride = K\(_3\)N

h. Magnesium phosphide = Mg\(_3\)P\(_2\)

This is the binary nomenclature of ionic compounds which involves both metals as well as non-metals. Metal is always named at the start without any prefix or suffix, while the name of the non-metals is placed after the metal in abbreviated form with the suffix "-ide".

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Answer:

His kinetic energy is converted into potential energy.

Explanation:

Answer:

Compounds From Decaying Matter.

Explanation:

A long time ago, when these were compounds in the ground. They were under lots of pressure, and then they turned into coal/diamonds.

1

1

The general molecular formula for phenol is C6H5OH. It is an aromatic organic compound with a hydroxyl group bonded to a carbon atom of a cyclic structure. The ring structure has alternate double and single bonds. The formula of phenol is C6H5OH. Benzene has the formula C6H6. It is a hexagonal ring of six carbon atoms bonded with alternate single and double bonds. Each carbon atom in benzene has a bond with a hydrogen atom. In phenol, a hydroxyl group replaces one of the hydrogen atoms.

The reaction of CuCl2, HNO3, and AgNO3 is a redox reaction. In a redox reaction, one substance loses electrons and is oxidized, while another substance gains electrons and is reduced. In this reaction, CuCl2 is oxidized to Cu2+, HNO3 is reduced to NO, and AgNO3 is reduced to Ag.

The balanced equation for the reaction is:

CuCl2 + 2HNO3 + 2AgNO3 → Cu2+ + 2NO + 2AgCl

The products of the reaction are copper(II) ions, nitrogen monoxide gas, and silver chloride precipitate.

Here are some of the properties of phenol:

Phenol is a white crystalline solid that is soluble in water.

Phenol has a strong, characteristic odor.

Phenol is a mild acid.

Phenol is toxic and can cause burns to the skin and eyes.

Phenol is used in a variety of products, including disinfectants, antiseptics, and plastics.

Answer:

1) mass and type of material

2) type of material

3) temperature

Explanation:

Answer:

For Ed

Explanation:

The first one is: The physical proprieties.

The second one is: The pH of the solution.

I've been seeing the same answers from above around though, so I may be wrong. But either way, I tried.

The median reaction at the second end point in the HCl and NaOH titration is: HCl + NaOH → NaCl + H2O

In a titration between hydrochloric acid (HCl) and sodium hydroxide (NaOH), the reaction involved is the neutralization reaction between an acid and a base. The balanced equation for this reaction is:

HCl + NaOH → NaCl + H2O

In this reaction, one mole of HCl reacts with one mole of NaOH to form one mole of NaCl (sodium chloride) and one mole of water.

During the titration process, the reaction occurs gradually as the base is added to the acid solution.

The first end point of the titration is reached when the moles of HCl and NaOH are stoichiometrically equivalent, meaning they react in a 1:1 ratio. At this point, all the HCl has been neutralized by the NaOH, and no excess of either reagent remains.

However, if the titration is continued beyond the first end point, the reaction between HCl and NaOH can still occur, albeit in a different ratio.

The second end point refers to the point where the moles of NaOH added exceed the stoichiometrically required amount to neutralize the HCl completely. As a result, any excess NaOH added after the second end point reacts with the excess HCl in a 1:1 ratio.

Therefore, the median reaction at the second end point in the HCl and NaOH titration is:

HCl + NaOH → NaCl + H2O

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Answer:

0.054 moles of carbon dioxide will be produced

Explanation:

Step 1: Data given

Number of moles oxygen = 0.085 moles

Step 2: The balanced equation

2C8H18 + 25O2 → 16CO2 + 18H2O

Step 3: Calculate moles of carbon dioxide

For 2 moles octane we need 25 moles oxygen gas to produce 16 moles carbon dioxide gas and 18 moles water vapor

0.0544

For 0.085 moles O2 we'll have 16/25 * 0.085 = 0.054 moles CO2

0.054 moles of carbon dioxide will be produced

Answer:

3 fluorine atoms will be present

Answer:

3

Explanation:

The chemical formula of aluminum fluoride is AlF3. As you can see, there is a 1:3 ratio of aluminum atoms to fluorine atoms. Therefore, if a molecule of AlF3 has one aluminum atom, you know there must be 3 fluorine atoms present.

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Answer:

Epoxy is the family of basic components or cured end products of epoxy resins.

INFORMATION:

We have the next compound:

- calcium nitrate

And we must find its molar mass using the periodic table

STEP BY STEP EXPLANATION:

First, we must identify the chemical formula for the compound:

- calcium nitrate: Ca(NO3)2

Second, we must identify the molecular weight of each element using the periodic table

- Ca: 40.08 g/mol

- N: 14.01 g/mol

- O: 16.00 g/mol

Third, We must replace the molecular weights in the chemical formula multiplying by the subscript

Finally, we must simplify and the result will be the molar mass of calcium nitrate

So, the molar mass would be 164.01 g/mol

ANSWER:

164.10 g/mol

Answer:

MgO

Explanation:

HAVE GREAT DAY

Answer:

pH = 4.45

Explanation:

We need to find the pH of \(3.5\times 10^{-5}\ M\) solution of HCl. We know that, pH of a solution is given by :

\(pH=-log[H]^+\)

Put all the values,

\(pH=-log[3.5\times 10^{-5}]\\\\pH=4.45\)

So, the pH of the solution of HCl is 4.45.

\([Zn^+^2] [Sn^+^2]\) is the most plausible source of this deviation. This is because neither the reaction quotient Q nor the conventional equilibrium constant K are equivalent under the present conditions of the reaction. Standard cell potential (E°), real cell potential (E), gas constant (R), temperature (T), Faraday constant (F), and reaction quotient (Q) are all related by the following formula:

E = E° - (RT/nF) ln Q

Q must be greater than K because E is greater than E°. The reaction quotient Q can be calculated by:

Q = [Sn]/[Zn + 2]

The measured voltage will be greater than the normal cell potential if [Zn+2] [Sn+2] and Q > K.

So, the correct option is C.

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Your question is incomplete, most probably the complete question is:

Sn2+ (aq) + Zn (s) → Sn (s) + Zn+2 (aq)

A galvanic cell was constructed using tin and zinc half cells. The voltage produced was measured to be 0.66 V at 25°C. However, the standard cell potential for this reaction is 0.62 V. Which of the following statements is the most likely source of this deviation?

(A) The salt bridge contained Na2SO4.

(B) SO42 was the anion at the anode and Cl was the anion at the cathode. (C) [Zn+2] < [Sn+2]

(D) The anode has a larger mass than the cathode.

(E) The volume of the Sn2 solution is greater than the volume of the Zn+2 solution.

24.6 mol Cu

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 1.48 × 10²⁵ atoms Cu

[Solve] moles Cu

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

24.5766 mol Cu ≈ 24.6 mol Cu

The structural formula of butanol is C4H9OH. It consists of a chain of four carbon atoms, with a hydroxyl (-OH) group attached to one of the carbon atoms. Butanol has several structural isomers, which have the same molecular formula but different structural formulas.

A structural isomer is a compound that has the same molecular formula as another compound but has a different arrangement of its atoms. A string of 4 C atoms are bonded above, below, left, and right to H, except the second C, which is bonded below to O, which is bonded below to H is a structural isomer of butanol.

This is called butan-2-ol. The structural formula of butan-2-ol is CH3CH(OH)CH2CH3. In this isomer, the hydroxyl group is attached to the second carbon atom in the chain, whereas in butanol, the hydroxyl group is attached to the first carbon atom in the chain.

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Answer:

Chlorine

Carbon

Sulphur

Rest all are metals.

More to know -

Silver metal is use in jewellery

helium is present is atmosphere ( it is harmful for living being )

Carbon is use in wires

Iron is uses in many articles like ships , Iron nail

Calcium is use to purify water

Mass of 0.359 mol of KCI is calculated to be 26.79 g. Mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol) is called molar mass.

Molar mass of a compound can be calculated by adding standard atomic masses of the constituent atoms.

The mass of 0.359 mol of KCI can be calculated by multiplying the number of moles by its molar mass:

mass = moles * molar mass

mass = 0.359 mol * 74.55 g/mol

mass = 26.79 g

So, the mass of 0.359 mol of KCI is 26.79 g.

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Answer: 26.79

Explanation:

Answer:

70.35°C

Explanation:

From the question,

Assuming: The specific heat capacity of cream and coffee is thesame as that of water = 4.2 J/g.°C

Applying

Heat lost by the coffee = heat gained by the cream

cm(t₁-t₃) = cm'(t₃-t₂)................ Equation 1

Where c = specific heat capcity of both cream and coffee, m = mass of coffee, t₁ = intial temperature of coffee, m' = mass of cream, t₂ = initial temperature of cream, t₃ = equilibrium temperature

From the question,

Given: m = 150 g, t₁ = 73.2°C, m' = 8 g, t₂ = 17°C

Constant: c = 4,2 J/g.°C

Substitute these values into equation 1

4.2×150(73.2-t₃) = 4.2×8(t₃-17)

630(73.2-t₃) = 33.6(t₃-17)

Solve for t₃

46116-630t₃ = 33.6t₃-571.2

630t₃+33.6t₃ = 571.2+46116

663.6t₃ = 46687.2

t₃ = 46687.2/663.6

t₃ = 70.35°C

Molecular Formula: H5O5V-5

Answer:

He was able to predict the properties because he left gaps for undiscovered elements

Explanation:

Mendeleev discovered there was undiscovered elements and grouped them similarly and periodically

Answer: B Electronegativity

(A-p-e-x)

B. Electronegativity tells the most about the stability of a metal.

Electronegativity directs to the ability of an atom to attract the shared electrons in the covalent bond. The more increased the value of the electronegativity is, the more intensely that element attracts the shared electrons.

Electronegativity, symbolized as χ, stands for the tendency for an atom of a provided chemical element to attract shared electrons when creating a chemical bond. An atom's electronegativity is influenced by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.

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Answer:

0.25 mole of H₂

Explanation:

The equation for the reaction is given below:

Mg + 2HCl —> MgCl₂ + H₂

From the question given above, we were told that the reaction produced 5.6 L of H₂.

Thus, we can obtain obtain the number of mole of H₂ that occupied 5.6 L at STP as follow:

1 mole of H₂ occupied 22.4 L at STP.

Therefore, Xmol of H₂ will occupy 5.6 L at STP i.e

Xmol of H₂ = 5.6 / 22.4

Xmol of H₂ = 0.25 mole

Therefore, 0.25 mole of H₂ were obtained from the reaction.

Answer:

The object on Mars has less potential energy than the same object on Earth.

Explanation:

Potential energy, PE, is given by the equation PE = mgh, where m is the mass, g the acceleration due to gravity, and h the height.  Since the gravity on Mars is 0.38 that of Earth, the same object would have 38% less potential energy than on Mars.  But don't tell that to a Martian.  

To find the density of the unknown piece of metal, we can use the formula:

Density = mass / volume.

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Answer:

name four agricultural inputs are subsidized by the government

0.297 kJ of heat is needed to raise the temperature of 10g of aluminum from 22 degrees Celsius to 55 degrees Celsius.

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

It is a measure of how much energy it takes to raise the temperature of a substance. It is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.

It is given by the formula -

                                                  Q = mcΔT

where, Q = amount of heat

m = mass

c = specific heat

ΔT = Change in temperature

Given,

mass = 10g

c = 0.901J/g⁰C

Initial temperature (T₁) = 22⁰C

Final Temperature (T₂) = 55⁰C

Q = mcΔT

= 10 × 0.901 × (55 -22)

= 297.33 J = 0.297 kJ

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Answer:

Determine the volume of occupied by 2.34 grams of carbon dioxide gas at STP?

It's simple problem of ideal gas equation.

Answer: B) Ten moles of sodium hydroxide and five moles of hydrogen gas will be produced

Explanation: Got it right on USATestPrep