4Fe +302 + 2Fe2O3
How many grams of Fe2O3 will be produced from 10.0 g of Fe and 7.00 g of O2?

Answer:

Helium is lighter than Hydrogen and Helium is a much safer gas.

Answer:

Helium gas is known to be very light which makes it a preferred choice to hydrogen. Helium has low boiling point, low density, low solubility, high thermal conductivity and inertness. Since it is less dense, it is considered suitable for filling balloons.

Answer: you will need 400 potatoes

Explanation:

Answer:

positive

Explanation:

Explanation:

A proton has positive charge ...

Answer:

habitat change, climate change, invasive species, and pollution

Explanation:

Answer:

I’m looking for an answer aswell

Explanation:

Answer:

a) Trichloromethyl

b) Trinitrogen Pentoxide

c) Carbogen

Explanation:

Answer:

Pluto is farthest from the sun and hence it receives extremely low energy of sun. The surface temperature of Pluto is about -240 !!!

Answer:

Volume is the  dependent  variable, and the

temperature of the gas is the  independent  variable.

Explanation:

Variables Independent Variable: temperature; Dependent Variable: volume

Constants: pressure and number of molecules

"Volume is the variable, and the temperature of the gas is the variable," it means that volume and temperature are both variables in a certain context or scenario.

A variable is a factor or quantity that can change or vary in value. In this case, volume and temperature are the variables being discussed.

Volume refers to the amount of space occupied by a gas. It can be altered by changing the physical conditions of the system, such as adding or removing gas molecules or changing the container size.

Temperature, on the other hand, refers to the measure of the average kinetic energy of the gas molecules. It determines the speed and energy of the gas particles. Temperature can be modified by adding or removing heat from the system.

Both volume and temperature play crucial roles in understanding the behavior of gases, particularly in gas laws such as Boyle's Law, Charles's Law, and the Ideal Gas Law.

Therefore, volume and temperature are being identified as variables that can be independently manipulated or observed to study the behavior of gases or analyze specific gas-related phenomena.

Know more about Boyle's Law:

https://brainly.com/question/21184611

#SPJ2

Your question is incomplete, but most probably your full question was.

"Volume is variable, and the temperature of the gas is variable". Explain this statement.

Answer:

This is a balanced equation because the same types of atoms and the same numbers of each atom are present on both sides of the equation. 8 S atoms are found on both sides of the equation, and 48 F atoms are found on both sides of the equation. S8 and 24F2 are the reactants; 8SF6 is the product. This is a combination reaction because two substances (S8 and 24F2) undergo a chemical union to form a more complex substance (8SF6).

S8+24F2→8SF6

Explanation:

Answer:

2-Methyl-5-nitrothiophene  

Explanation:

The 2- and 5-positions of thiophene are the most susceptible to electrophilic aromatic substitution.

Thus, the major product from the reaction of 2-methylthiophene with HNO₃ in acetic acid is 2-methyl-5-nitrothiophene.

Answer: a computer

Explanation:

Answer:

The correct answer to the following question will be Option B "8.4 mol".

Explanation:

The given values are:

Molarity of a solution = 0.021 M

Litres of solution = 400 L

Let the moles be "x".

As we know,

⇒  [tex]Molarity = \frac{Moles \ of \ solute}{Litres \ of \ solution}[/tex]

On putting the estimated values, we get

⇒  [tex]0.021=\frac{x}{400}[/tex]

On applying cross-multiplication, we get

⇒  [tex]x =0.021\times 400[/tex]

⇒  [tex]x=8.4 \ mol[/tex]

Answer:

The amount of energy produced is less than 454 kJ.

Explanation:

I do not know but if am wrong you can correct me. I need your help for business, english and chemistry questions on my profile. So can you and the other person who commented and go on my profile please...? the due date already gone 12 days ago.

Answer:

3.46

Explanation:

-log(3.50*10^-4) = 3.46

Answer:

[tex]m_{undissolved}=27g[/tex]

Explanation:

Hello,

In this case, we first define the solubility as the maximum amount of a solute that is completely dissolved in an specific amount of solvent and it is temperature-dependent. Thus for potassium iodide, its solubility at 30°C is 153 g per 100 cm3 of water, therefore, with the given amount, the undissolved amount results:

[tex]m_{undissolved}=180g-153g=27g[/tex]

Best regards.

Answer:

B

Explanation:

The answer is substitution

Answer:

0.46M NaS₂O₃ (Assuming KIO₃ solution with a concentration of 1.0M)

Explanation:

Based on the reaction:

6 Na₂S₂O₃ + KIO₃ + 5 KI + 3 H₂SO₄ → 3 Na₂S₄O₆ + 3 H₂O + 3 K₂SO₄ + 6 NaI

6 moles of  Na₂S₂O₃ react per mole of KIO₃

Assuming the molarity of the KIO₃ solution is 0,1M:

Moles of KIO₃: = 5.0x10⁻³L ₓ (0.1 mol / L) = 5.0x10⁻⁴ moles

As 6 moles of thiosulfate reacted per mole of iodate:

5.0x10⁻⁴ moles KIO₃ ₓ (6 moles Na₂S₂O₃ /  1 mole KIO₃) =

3.0x10⁻³ moles of Na₂S₂O₃. In 6.5mL (6.5x10⁻³L):

3.0x10⁻³moles Na₂S₂O₃ / 6.5x10⁻³ L = 0.46M NaS₂O₃

Answer:

400000

Explanation:

First, figure out what 10^5 is. It is 100000. Then multiply it by 4 and there is your answer!

Also if it is 4x10^-5, it is 0.00004!

Oh yeah! If you want it to be in scientific notation, it is: 4x10^5

Since that I didn't quite understand what you are trying to question, it is either 4x10^5 or 4x10^-5!

Answer:

they often form hydroxide ions

Explanation:

Answer:

answering what???

Explanation:

Answer:

I answered

Explanation:

radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. Your mind interprets the energies of light as different colors, from red to violet.

Answer:

THE INITIAL VOLUME OF THE STOCK SOLUTION IS 0.0392 L OR 39.2 mL

Explanation:

To calculate the volume of a solution before dilution, we make use of the dilution formula;

C1 V1 = C2 V2

C1 = the concentration of the stock solution = 15 M

V 1 = the volume of stock solution = ?

C2 = concentartion of final solution = 2.35 M

V2 = volume of final solution = 250 mL = 250/ 1000 = 0.25 L

Rearranging the formula, we obtain;

V1 = C2V2 / C1

V 1 = 2.35 * 0.25 / 15

V1 = 0.5875 / 15

V1 = 0.0392 L

the initial volume of the stock solution is 0.0392 L or 39.2 mL

Answer:

Atoms of Zn (s) lose electrons and are oxidized. Atoms of Zn (s) lose electrons and are reduced. There is a net loss of mass. There is a net gain of mass.

Explanation:

Answer:

Sex

Explanation:

Answer: The volume of product formed is 0.26 L

Explanation:

[tex]\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} H_2=\frac{0.02g}{2g/mol}=0.01moles[/tex]

[tex]2H_2(l)+O_2(l)\rightarrow 2H_2O(g)[/tex]

As [tex]O_2[/tex] is the the excess reagent, [tex]H_2[/tex] is the limiting reagent as it limits the formation of product.

According to stoichiometry :

2 moles of [tex]H_2[/tex] give = 2 moles of [tex]H_2O[/tex]

Thus 0.01 moles of [tex]H_2[/tex] will give =[tex]\frac{2}{2}\times 0.01=0.01moles[/tex]  of [tex]H_2O[/tex]

According to ideal gas equation:

[tex]PV=nRT[/tex]

P = pressure of gas = 101.325 kPa = 1 atm

V = Volume of gas = ?

n = number of moles = 0.01

R = gas constant =[tex]0.0821Latm/Kmol[/tex]

T =temperature =[tex]40^0C=(40+273)K=313K[/tex]

[tex]V=\frac{nRT}{P}[/tex]

[tex]V=\frac{0.01mol\times 0.0821L atm/K mol\times 313K}{1atm}=0.26L[/tex]

Thus the volume of product formed is 0.26 L

Answer:

I think its city y, I don't know if its right though.

Explanation:

Answer:

When an acid and a base react with each other, a neutralization reaction occurs, forming a salt and water. The water forms from the combination of the H + ions from the acid and the OH - ions from the base. Strong acids and strong bases completely dissociate, so the reaction yields a solution with a neutral pH (pH = 7).

Explanation: