How many moles of Carbon can be made from 6.37 moles of Iron?

gravitational force is most responsible for binding together an atom’s protons and neutrons.

In physics, gravity (from Latin gravitas 'weight') is a fundamental interaction which causes mutual attraction between all things with mass or energy. Gravity is by far the weakest of the four fundamental interactions, approximately 1038 times weaker than the strong interaction, 1036 times weaker than the electromagnetic force and 1029 times weaker than the weak interaction. As a result, it has no significant influence at the level of subatomic particles. However, gravity is the most significant interaction between objects at the macroscopic scale, and it determines the motion of planets, stars, galaxies, and even light.

On Earth, gravity gives weight to physical objects, and the Moon's gravity causes tides in the oceans. Gravity also has many important biological functions, helping to guide the growth of plants through the process of gravitropism and influencing the circulation of fluids in multicellular organisms. Investigation into the effects of weightlessness has shown that gravity may play a role in immune system function and cell differentiation within the human body.

The gravitational attraction between the original gaseous matter in the Universe allowed it to coalesce and form stars which eventually condensed into galaxies, so gravity is responsible for many of the large-scale structures in the Universe. Gravity has an infinite range, although its effects become weaker as objects get farther away.

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Answer:

The starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

Answer:

Lower the pH slightly

Explanation:

The mixture of HF, hydrofluoric acid and KF, potassium fluoride produce a buffer that is defined for the equilibrium:

HF(aq) → H⁺(aq) + F⁻(aq)

The buffer can maintain the pH of a solution despite the addition of strong bases or acids.

The reaction of HF with Ca(OH)2 is:

2HF + Ca(OH)2 → 2H2O + CaF2

That means the calcium hydroxide is decreasing the concentration of HF. Based on the equilibrium, the H+ and F- ions will decrease in order to produce more HF. As H+ is decreasing due the equilibrium and not for the addition of a strong base, the pH is decreasing slightly.

Answer:

D. contains the maximum amount of solute that will dissolve in that solvent at that temperature.

Explanation:

Solubility is a term used to describe how readily a substance can be dissolved in a solvent to form a solution. Thus, a substance is said to be soluble if it dissolves completely in a solvent and insoluble if it doesn't dissolve or only dissolves partially.

For example, sodium chloride (NaCl) when mixed with water dissociates into sodium and chloride ions. Thus, salt (sodium chloride) is said to be soluble because it dissolves completely in water.

Hence, a compound that dissolves in water to produce an aqueous solution is said to be soluble in water. Also, the solute of an aqueous solution that conducts electricity is called an electrolyte.

In Chemistry, dissolution can be defined as the process of dissolving or dissociating a solute in solid, liquid or gaseous phase into fragmented particles by a solvent in order to form a solution. For dissolution to occur in solids, the crystalline structure of the substance must be broken up so as to release ions, atoms or molecules to produce a solution. For liquid and gases, the substance to be dissolved must form a non-covalent bond with the solvent to produce a solution.

Generally, a saturated solution contains the maximum amount of solute that will dissolve in that solvent at that temperature.

Answer:

143.12 g

Explanation:

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

Initial temperature (T₁) = 32 °C

Final temperature (T₂) = 130 °C

Heat (Q) = 5400 J

Specific heat capacity (C) = 0.385 J/gºC

Mass (M) =?

Next, we shall determine the change in temperature of copper. This can be obtained as follow:

Initial temperature (T₁) = 32 °C

Final temperature (T₂) = 130 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 130 – 32

ΔT = 98 °C

Finally, we shall determine the mass of copper. This can be obtained as follow:

Change in temperature (ΔT) = 98 °C

Heat (Q) = 5400 J

Specific heat capacity (C) = 0.385 J/gºC

Mass (M) =?

Q = MCΔT

5400 = M × 0.385 × 98

5400 = M × 37.73

Divide both side by 37.73

M = 5400 / 37.73

M = 143.12 g

Therefore, the mass of copper is 143.12 g

Answer:

Moles = avogadro's constant divided by the number of molecules.

Answer:

At about 51 °C

Explanation:

Hello there!

In this case, according to the attached solubility chart of potassium nitrate, our first step for this problem is to calculate the grams of this solute in 100 g given that 23 g are soluble in 25 g of water:

[tex]\frac{23g}{25g}=\frac{x}{100g}\\\\x= \frac{23g*100g}{25g}=92g[/tex]

Thus, such solubility of 92 g in 100 g of water is exhibited at about 51 °C.

Regards!

Answer:where is the image

Explanation:

Answer:

B.

a selectively permeable membrane

Explanation:

Answer:

The answer is oxygen gas.

The question is incomplete, the complete question is;

Solid mercury (II) oxide decomposes into liquid mercury and oxygen gas upon the absorption of 90.8 kJ for each mole of mercury (II) oxide decomposed.

What is the reaction without the energy?

What is the appropriate side of the equation and value for the energy term?

Answer:

See Explanation

Explanation:

The equation of the reaction is;

2HgO(s) ==> 2Hg(l) + O2(g)

Let us recall that a chemical equation is balanced if the number of atoms of each element on both sides of the reaction equation are the same. There are two atoms each of mercury and oxygen on both sides of the reaction equation hence the equation is balanced.

In order to write a thermochemical equation, the heat of reaction is written on the right hand side of the reaction equation after writing the products as follows;

2HgO(s) ==> 2Hg(l) + O2(g)    ΔH = +90.8 kJ

Answer:

Please find the complete question and its solution in the attached file:

Explanation:

Answer:

False

Explanation:

Frogs dont and i looked it up :)

Answer:

False

Explanation

Frog do not.

Answer:

The correct answer is - 15 hours.

Explanation:

Half-life an element is the time required to decay the half amount of the initial amount of the element and is represented by t1/2.

The formula for the calculating initial amount

n(i)=n(r)⋅2^n

where

n(i) - the initial number of moles of element

n(r) - the number of moles remained amount after the given time

n - the number of periods,

=  time T, where T is the half-life.

n(i)=n(r)⋅2^n

n(i)/n(r) =2^n

1/16 =2^n

n= 4

The half life = 60/n

= 60/4

= 15 hours.

Answer: Solubility of NaOH is greater and there are more OH- ions in solution.

Explanation: Reactions : NaOH (s) ⇒ Na+ (aq) + OH- (aq)

Mg(OH)2 (s) ⇒ Mg2+ (aq) + 2 OH-(aq)

Although in same amount of moles, Mg(OH)2 produces

two (OH-)-ions in water solution, solubility of Mq(OH)2 is smaller.

Concentration [OH-]ions is smaller in saturated  water solution

of Mg(OH)2

Answer:

Root system will become larger or extend farther

Explanation:

If nutrient in soil decrease, the plant's roots system will likely become larger and extend out deeper and farther to get all the nutrients it possibly can

Answer:

92.6

Explanation:

Answer:

[tex]m_{FeCl_2}=0.652gFeCl_2[/tex]

Explanation:

Hello there!

In this case, according to the given information and the chemical reaction, whereby iron and hydrochloric acid react in a 1:2 mole ratio, it is firstly necessary to calculate the moles of iron (II) chloride from each reactant in order to figure out the limiting reactant:

[tex]n_{FeCl_2}=2.45gFe*\frac{1molFe}{55.845gFe}*\frac{1molFeCl_2}{1molFe}=0.0439molFeCl_2\\\\ n_{FeCl_2}=1.5L*0.25\frac{molHCl}{L} *\frac{1molHCl}{36.46gHCl}*\frac{1molFeCl_2}{2molHCl}=0.00514molFeCl_2[/tex]

In such a way, we infer the maximum moles of FeCl2 product are yielded by HCl, for which it is the limiting reactant. Finally, we calculate the grams of product by using its molar mass as shown below:

[tex]m_{FeCl_2}=0.00514molFeCl_2*\frac{126.75gFeCl_2}{1molFeCl_2} \\\\m_{FeCl_2}=0.652gFeCl_2[/tex]

Regards!

Answer:

Cells need to divide to reproduce.

Explanation:

They go through numerous stages, such as mitosis to further replicate themselves. They can't get things done alone, so they have to work in numbers.

Answer:

It holds heat from the sun close to Earth.

Explanation:

Hope this helps and have a great day. :)

Answer:

There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object.

Explanation:

Answer:

B

Explanation:

Chemical bonds are a form of potential energy.

Answer: H3PO4(aq)+3NaOH(aq)→Na3PO4(aq)+3H2O(l)

Explanation:

Answer:

38 and [Kr] 5s2.

Explanation:

The number of electrons and the electronic configurations are the same for the three isotopes of Strontium because in isotopes number of neutron increases not number of proton or electron. Isotope of element having the same atomic number but with different atomic masses due to increase the number of neutrons in each isotope. So the number of electron in all isotopes are the same i.e. 38 and the electronic configuration is also the same i.e. [Kr] 5s2.

Answer: hello some part of your question is missing below is the missing part

when H₂O and H₂O₂ is added to Mn(OH)₂(s) and put in water bath to dissolve

answer : attached below

Explanation:

When Mn²⁺ ions are separated from the mixture, attached below are the requires reaction equations that shows the process of separation.

Mn²⁺ ions are separated to the right of the reaction  equations

Answer:

hope this helps

Explanation:

2.  Well, we take the quotient...concentration=moles of solutevolume of solution

Explanation:

And thus concentration has the units of mol⋅L−1...

And so in this given scenario, the quotient gives....

concentration=[NaCl(aq)]=0.50⋅mol0.30⋅L=1.67⋅mol⋅L−1.

What are the concentrations with respect to [Na+], and [Cl−]?  

3. molarity=2.41molL

Explanation:

Molarity=Moles of soluteLiters of solution

Moles=0.289

Solution=120mL=0.12L

Therefore,

Molarity=0.289mol0.12L≈2.41molL

4. 1.169 mol/L

Explanation:

From the question given, we obtained the following information:

Volume = 0.075 L

Mole of CuCo = 0.0877 moles

Molarity =..?

Molarity is simply defined as the mole of solute per unit litre of the solution. It is represented mathematically as:

Molarity = mole /Volume

With the above formula, we can obtain the molarity of the solution as follow:

Molarity = 0.0877 mol / 0.075 L

Molarity = 1.169 mol/L

Therefore, the molarity of the solution is 1.169 mol/L

Answer:

d

Explanation:

d

The formulas which could represent the empirical formula and the molecular formula of a given compound are  CH₂, C₃H₆ as the smallest possible is 2 which on multiplying the subscripts of empirical formula give molecular formula.

Empirical formula of a compound is defined as the simplest whole number ratio of atoms which are present in a compound.It does not make any mention of the arrangement of atoms or the number of atoms. The empirical formula gives information about the ratio of number of atoms which are present in a compound.

Molecular formula is determined from the empirical formula by dividing the molar mass of a compound by the empirical formula mass. The resultant which should be a whole number or very close to the whole number , then the subscripts are multiplied by the whole number to get the molecular formula.

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