(b) C.H.(g) + O2(g)
CO2(g) + H2O(g) balance ?​

Answers

Answer 1

The complete question is: [tex]CH_{4}(g) + O_{2}(g) \rightarrow CO_{2}(g) + H_{2}O(g)[/tex] balance?

Answer:  [tex]CH_{4}(g) + 2O_{2}(g) \rightarrow CO_{2}(g) + 2H_{2}O(g)[/tex] is a balanced equation.

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.

For example, [tex]CH_{4}(g) + O_{2}(g) \rightarrow CO_{2}(g) + H_{2}O(g)[/tex]

Here, number of atoms on reactant side are as follows.

C = 1H = 4O = 4

Number of atoms on product side are as follows.

C = 1H = 2O = 3

To balance this equation multiply [tex]O_{2}[/tex] by 2 on reactant side and multiply [tex]H_{2}O[/tex] by 2 on product side. Hence, the equation can be re-written as follows.

[tex]CH_{4}(g) + 2O_{2} \rightleftharpoons CO_{2}(g) + 2H_{2}O(g)[/tex]

Here, number of atoms on reactant side are as follows.

C = 1H = 4O = 4

Number of atoms on product side are as follows.

C = 1H = 4O = 4

Since, there are same number of atoms on both reactant and product side. So, this equation is a balanced equation.

Thus, we can conclude that [tex]CH_{4}(g) + 2O_{2}(g) \rightarrow CO_{2}(g) + 2H_{2}O(g)[/tex] is a balanced equation.


Related Questions

1. What is the modern view of electrons in the quantum mechanical model?

Answers

Answer: An electron con only exist in a limited number of quantized energy levels.

Explanation:

Which of the living things in the pond system uses the energy from sunlight
to make its own food?



A:water lily

B:insect

C:frog

D:small fish

Answers

A. water lily

It is a plant. Plants are autotrophs. They make their own food.

Answer:

i am not sure with the answer.

but i think it will be water lily Or insects

The ionization energies of Calcium are (in KJ/mol): 1st: 589.8 2nd: 1145.4 3rd: 4912.4
Explain why there is such a large jump from 2nd to 3rd ionization energy.
pleaseeee i need help, my brain is just not getting it

Answers

Answer:

See whole explanation to understand

Explanation:

the reason why there is such a large jump from 2nd to 3rd ionization energy for calcium is because to remove the third electron, a larger amount of energy is required, since the shell is closer to the nucleus, and higher attraction exists between them. This is why the second ionization energy is 1125.4 and then the third IE is 4912.4 which is a very big difference. It's all about the elections and energy!!

Atoms of different element can not have same atomic number because only same type of atoms combine to form element. Atoms belonging to different element can have different atomic number. Therefore, higher attraction between shell and nucleus, there is such a large jump from 2nd to 3rd ionization energy.

What is element?

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same. Two or more than two atoms with different physical or chemical properties can not combine together to form an element.

The reason why there is such a large jump from 2nd to 3rd ionization energy for calcium is because to remove the third electron, a larger amount of energy is needed, since the shell is closer to the nucleus, and higher attraction exists between them.

Therefore, higher attraction between shell and nucleus, there is such a large jump from 2nd to 3rd ionization energy.

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the bond between br atoms in a br2 molecule is

Answers

Answer:

COVALENT

Explanation:

covalent and is formed by the sharing of two valence electrons.

Atoms bond by ______ electrons.
O gaining
O sharing
O losing
O all of the above

Answers

The answer is all of the above. Hope this helps.

0.0075mole of calcium trioxocrabonate IV is added to 0.015mole of a solution of hydrochloric acid .the volume of gas evolved at stp is​

Answers

Answer:

1mole of gas at STP = 22.4dm3

0.0075 mole of CaCO3 = xdm3

cross multiply;

where 22.4dm3 = 22400cm3

x * 1 = 0.0075 * 22400 → 168cm3

the gas CO2 which evolved was gotten from CaCO3 so we use the number of moles of CaCO3 only

What is the [H+] if [OH-] = 1 x 10-5 M?

Answers

Its b
Because kw= (H+ )x (oH-)

I need help with this​

Answers

Answer:

the answer is the last one , sorry if im wrong.

Explanation:

Pls help with question a and b.

Answers

a) 1 - Trigonal planar 2 - Trigonal planar

b) 1- Linear  2 - Tetrahedral  3 - Tetrahedral

c) 1 - Trigonal planar 2 - Tetrahedral

What are the shapes?

We have to know that the shapes at the various carbon atoms and other atoms would depend on the number of the electron pairs and the hybridization of the atom.

We must have to note that the shape of the atom can be found on the basis of the valence shell electron pair repulsion theory which deals with the arrangement of that electrons around the outermost shell of the central atom.

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Le Châtelier’s principle is applied in the bottling of carbonated soft drinks. You are probably familiar with the “hissing” or “popping” sound of opening of either an aluminum soda can or plastic bottle. This occurs by adding carbon dioxide to water to produce carbonic acid in a reversible reaction, which is shown below: H2O(l) + CO2(g) <-------------------> H2CO3(aq) As you may have known, these beverages are bottled under increased pressure, placing stress on the equilibrium. Following Le Châtelier’s principle, the system shifts to the right to reduce the stress, in response to the increase in pressure. When the bottle or can is opened, the pressure is reduced. This reaction favors the reactants, thus shifting the system to the left, and CO2 gas forms and comes out of the solution. Question # 8 :You open a can of Coca-Cola and you pour it into a glass with ice. You notice that the soda is very fizzy and quite effervescent. What do you think is responsible for this? Group of answer choices A. H2O formation under pressure. D. Release of H2O as a result of opening the can. B. H2CO3 formation under pressure. C. Release of CO2 as a result of opening the can.

Answers

Answer:

C. Release CO2 due to can opening

Explanation:

Le Châtelier’s principle states that when a reaction is at equillibrium and it is disturbed it will respond to return to equilibrium.

SO

H2O(l) + CO2(g) <-------------------> H2CO3(aq)

When you open a bottle of coke it is under pressure and not at equillibrium so it reacts by releasing the gas to reach equilibrium it can be seen in the equation above just that this is for club soda not coke, the idea applies though

What contributes to water's properties?

Polar molecule

Shape of the molecule

All of the other options are correct

Oxygen is more electronegative than hydrogen


Answers

I think its B but I’m not totally sure

Find the molarity of a solution in which 0.99 mol of NaCl are dissolved in 2.5 L of solution.

Answers

Answer:

0.369M

Explanation:

[tex]\boxed{Molarity = mole \div volume}[/tex]

☆ Volume has to be in litres

Molarity of solution

= 0.99 ÷2.5

= 0.369 M

What mass of ocean water in grams contains 50.8 g of NaCl?

Answers

Answer:

1451.42 g

Explanation:

Let assume that the mass of ocean water comprises 3.5%

NaCl = 3.5%

[tex]3.5 = \dfrac{50.8}{mass \ of \ ocean \ water } \times 100[/tex]

[tex]mass \ of \ ocean \ water = \dfrac{50.8}{3.5 } \times 100[/tex]

mass of the ocean water = 1451.42 g

What is the best way to avoid bacterial contaminantion?

Answers

Answer:

Wash hands and surfaces often. Harmful bacteria can spread throughout the kitchen and get onto cutting boards, utensils, and counter tops. To prevent this: Wash hands with soap and hot water before and after handling food, and after using the bathroom, changing diapers; or handling pets.

Wash hands with soap and hot water before and after handling food, and after using the bathroom, changing diapers; or handling pets.

why does water wet glass and not mercury​

Answers

Mercury probably isn’t as adhesive as water

Manganese is a transition metal. Consider the isotope: Mn-53. How many protons are in an atom of Mn-53 if the atom has a charge of 5?

Answers

Answer:

25

Explanation:

Isotopes of an element are the same element with different mass numbers but the same atomic number or the number of protons.

we know that in a balanced atom

Number of electrons = Number of protons = Atomic number

Atomic number (z) of manganese = 25

For Mn+5, the number of protons remains the same = 25

However, the number of electrons on Mn+5 = 21

Answer: 25

Explanation:

matching will give brainliest. if you can answer any it help
1. element with atomic number greater than 92.
2. helium nucleus with and atomic number or 2 and a mass of 4.
3. unit for measuring exposure to radiation.
4. changing of one element to another due to alpha or beta decay.
5. caused by the decay of an electron.
6. atoms of the same element with different numbers of neutron.
7. the initial isotope before decay.

a. rem
b. alpha particle
c. beta particle
d. trans uranium element
e. transmutation
f. isotope
g. parent nuclide

Answers

Explanation:

In natural radioactive decay, three common emissions occur. When these emissions were originally observed, scientists were unable to identify them as some already known particles and so named them:

alpha particles ( α )

beta particles (β)

gamma rays (γ)

These particles were named using the first three letters of the Greek alphabet. Some later time, alpha particles were identified as helium-4 nuclei, beta particles were identified as electrons, and gamma rays as a form of electromagnetic radiation like x-rays, except much higher in energy and even more dangerous to living systems.

Explain how abiotic factors change within a community as a result of the
succession of vegetation.

Answers

Couldn’t figure out the answer hope you get it soon

Hello!
please help me!
The nerve gas phosgene decomposes according to COC12(g) - CO(g) + Cl2(g), K = 0.32 at 1000 K. If
the initial concentration of phosgene is 0.015 M. what are the equilibrium concentrations of all gases?

Answers

Answer:

[tex][CO]=[Cl_2]=0.01436M[/tex]

[tex][COCl_2]=0.00064M[/tex]

Explanation:

Hello there!

In this case, according to the given chemical reaction at equilibrium, we can set up the equilibrium expression as follows:

[tex]K=\frac{[CO][Cl_2]}{[COCl_2]}[/tex]

Which can be written in terms of x, according to the ICE table:

[tex]0.32=\frac{x^2}{0.015M-x}[/tex]

Thus, we solve for x to obtain that it has a value of 0.01436 M and therefore, the concentrations at equilibrium turn out to be:

[tex][CO]=[Cl_2]=0.01436M[/tex]

[tex][COCl_2]=0.015M-0.01436M=0.00064M[/tex]

Regards!

A gas occupies 12.5 ft at - 173 °C. At what Celsius temperature will its volume be 16.0
it? Assume that pressure remains constant

Answers

Answer:

T₂ = 128.19 K

Explanation:

Given that,

The initial volume, V₁ = 12.5 ft³

Initial temperature, T₁ = -173 °C = 100.15 K

Final volume, V₂ = 16 ft³

We need to find the new temperature. The relation between temperature and volume is given by :

[tex]V\propto T\\\\\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}[/tex]

Put all the values,

[tex]T_2=\dfrac{T_1V_2}{V_1}\\\\T_2=\dfrac{100.15\times 16}{12.5}\\\\T_2=128.19\ K[/tex]

So, the new temperature is 128.19 K.

Why Zinc is not really considered as member of the transition metals?

Answers

The definition of a transition metal is that it must have an incompleted sub-level in one or more of its oxidation states. As zinc has a completed sub-level at all oxidative states, so it can't be considered a transition metal.

A 27 kg iron block initially at 375 C is quenched in an insulated tank that contains 130kg of water at 26 C. Assume the water that vaporizes during the process condenses back in the tank and the surroundings are at 12 C and 125 kPa. The specific heats of iron and water are 0.45 kJ/kgK and 4.18 kJ/kgK, respectively. a: Determine the final equilibrium temperature. b: Determine the entropy change of the combined system at the initial state. c: Determine the exergy of the combined system at the initial state. d: Determine the waste work potential during this process.

Answers

Solution :

a). Applying the energy balance,

[tex]$\Delta E_{sys}=E_{in}-E_{out}$[/tex]

[tex]$0=\Delta U$[/tex]

[tex]$0=(\Delta U)_{iron} + (\Delta U)_{water}$[/tex]

[tex]$0=[mc(T_f-T_i)_{iron}] + [mc(T_f-T_i)_{water}]$[/tex]

[tex]$0 = 27 \times 0.45 \times (T_f - 375) + 130 \times 4.18 \times (T_f-26)$[/tex]

[tex]$t_f=33.63^\circ C$[/tex]

b). The entropy change of iron.

[tex]$\Delta s_{iron} = mc \ln\left(\frac{T_f}{T_i} \right)$[/tex]

           [tex]$ = 27 \times 0.45\ \ln\left(\frac{33.63 + 273}{375 + 273} \right)$[/tex]

           = -9.09 kJ-K

Entropy change of water :

[tex]$\Delta s_{water} = mc \ \ln\left(\frac{T_f}{T_i} \right)$[/tex]

           [tex]$ = 130 \times 4.18\ \ln\left(\frac{33.63 + 273}{26 + 273} \right)$[/tex]

           = 10.76 kJ-K

So, the total entropy change during the process is :

[tex]$\Delta s_{tot} = \Delta s_{iron} + \Delta s_{water} $[/tex]

        = -9.09 + 10.76

         = 1.67 kJ-K

c). Exergy of the combined system at initial state,

[tex]$X=(U-U_{0}) - T_0(S-S_0)+P_0(V-V_0)$[/tex]

[tex]$X=mc (T-T_0) - T_0 \ mc \ \ln \left(\frac{T}{T_0} \right)+0$[/tex]

[tex]$X=mc\left((T-T_0)-T_0 \ ln \left(\frac{T}{T_0} \right)\right)$[/tex]

[tex]$X_{iron, i} = 27 \times 0.45\left(((375+273)-(12+273))-(12+273) \ln \frac{375+273}{12+273}\right)$[/tex]

[tex]$X_{iron, i} =63.94 \ kJ$[/tex]

[tex]$X_{water, i} = 130 \times 4.18\left(((26+273)-(12+273))-(12+273) \ln \frac{26+273}{12+273}\right)$[/tex]

[tex]$X_{water, i} =-13.22 \ kJ$[/tex]

Therefore, energy of the combined system at the initial state is

[tex]$X_{initial}=X_{iron,i} +X_{water, i}$[/tex]

            = 63.94 -13.22

            = 50.72 kJ

Similarly, Exergy of the combined system at initial state,

[tex]$X=(U_f-U_{0}) - T_0(S_f-S_0)+P_0(V_f-V_0)$[/tex]

[tex]$X=mc\left((T_f-T_0)-T_0 \ ln \left(\frac{T_f}{T_0} \right)\right)$[/tex]

[tex]$X_{iron, f} = 27 \times 0.45\left(((33.63+273)-(12+273))-(12+273) \ln \frac{33.63+273}{12+273}\right)$[/tex]

[tex]$X_{iron, f} = 216.39 \ kJ$[/tex]

[tex]$X_{water, f} = 130 \times 4.18\left(((33.63+273)-(12+273))-(12+273) \ln \frac{33.63+273}{12+273}\right)$[/tex]

[tex]$X_{water, f} =-9677.95\ kJ$[/tex]

Thus, energy or the combined system at the final state is :

[tex]$X_{final}=X_{iron,f} +X_{water, f$[/tex]

            = 216.39 - 9677.95

            = -9461.56 kJ

d). The wasted work

[tex]$X_{in} - X_{out}-X_{destroyed} = \Delta X_{sys}$[/tex]

[tex]$0-X_{destroyed} = $[/tex]

[tex]$X_{destroyed} = X_{initial} - X_{final}$[/tex]

                = 50.72 + 9461.56

                = 9512.22 kJ

At 25.0° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 7.75 moles of Gas B. What is the total pressure in atm?

Answers

Answer:

23.12 atm

Explanation:

First, add together the moles of the two samples:

5.25 moles + 4.20 moles = 9.45 moles

273 + 25 = 298 K for the temperature

volume is 10.0 L

Since we have moles now, we have to rearrange our ideal law equation to solve for pressure:

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

[tex]\frac{(9.45 moles) X (0.08206) X (298 K)}{10.0 L}[/tex]

9.45 X .08206 X 298 all divided by 10.0 = 23.09202 atm (or 23.12)

Q)A certain mass of gas occupies a volume 2.5 L at 90atm. What pressure would the gas exert if it were placed in a 10 L container at the same temperatur?​

Answers

Answer:

23 atm

Explanation:

Step 1: Given data

Initial volume (V₁): 2.5 LInitial pressure (P₁): 90 atmFinal volume (V₂): 10 LFinal pressure (P₂): ?

Step 2: Calculate the final pressure of the gas

If we assume constant temperature and ideal behavior, we can calculate the final pressure of the gas using Boyle's law.

P₁ × V₁ = P₂ × V₂

P₂ = P₁ × V₁ / V₂

P₂ = 90 atm × 2.5 L / 10 L = 23 atm

As expected, since the volume increased, the pressure decreased.

please no links and round two decimal places

Answers

Answer:

https://vm.tiktok.com/ZMet3FuC2/

Students performed an investigation on how aluminum cans taken to a recyle center were able to be reused. They found out an aluminum can undergoes which type of change?

a physical change because the can is heated
a chemical change because new metal is formed
a physical change because the material remains the same
a chemical change because an old can is changed into a new can

Answers

Answer:

The correct answer is - a physical change because the material remains the same.

Explanation:

A chemical change is the change that results in the formation of the new element or the substance whereas the physical change remains the same material or substance even after the change.

The physical change can be a change in density, size, shape, or volume, and other properties. In the recycling of the aluminum can the material remain the same only shape or size of the aluminum change order to reuse.

Answer:

its D i promise

Explanation:

А
A and B are forces acting on a falling object. Which
force, A or B, represents gravity in the diagram?
Force 1
is gravity because it attracts the ball
to the ground.
B
Ground

Answers

Answer:

Force B

Explanation:

Gravity pulls "down"  :D

Hoped this helped!

Have a nice day!

a gas occupies a volume of 95 mL when the pressure is 400 mmHg .what volume does the gas occupy at 1200 mmhg if the temperature

Answers

Answer:31.7ml

Explanation:

Neera and Tom dissolved different masses of salt in 500 cm³ of water.
They measured the temperature at which each salt solution boiled.
salt
solution
(They wrote down the variables that might affect the investigation.
temperature of the
mass of salt
laboratory
dissolved in water
boiling point of
salt solution
thermometer
volume of water
starting temperature
of the water
type of salt used

Answers

The variables that might affect the investigation while dissolving different masses of salt are temperature and mass of the salt.

In the provided investigation, what are the independent and dependent variables?

A variable that changed during the inquiry is regarded as an independent variable and is called "mass of salt dissolved in water." While the investigation's dependent variable, "boiling point of salt solution," is a variable that was monitored.

What are variables in a laboratory?

There are numerous things that can be changed to see how they affect other things. Variables are the changeable quantities. Any element, character trait, or condition that can exist in a variety of forms or concentrations is a variable. Independent, dependent, and controlled variables are the three types of variables that often make up an experiment.

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Neera and Tom dissolved different masses of salt in 500 cm3 of water.

They measured the temperature at which each salt solution boiled.

(a) They wrote down the variables that might affect the investigation.

temperature of the laboratorymass of salt dissolved in waterstarting temperature of the waterboiling point of salt solutionvolume of watertype of salt used

(i) What is the independent variable (the variable they changed) in

their investigation?

(ii) What is the dependent variable (the variable they measured) in

their investigation?

(iii) Which variable above would affect the experiment the least?

4.
Ethanol has a specific heat of 2.44 (J/g.°C). The temperature of 34.4 g of ethanol increases
from 25 °C to 78.8 °C. How much Heat was absorbed?

Answers

3.4C amount was absorbed
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