In each term equation below a blank line shows one term missing the terms may be an elemental symbol a coefficient or a subscript decide which term would balance the equation write the missing term in the second column the. Determine the reactants third column and products forth column of the reaction some reactions may have only one reactant or product and other reactions may have only one reactant or product and other reactions may have multiple reactants or products write your answers in the spaces in the table the first reaction involves sodium chloride not sodium carbon and iodine

Answer:

1048 mL

Explanation:

Step 1: Given data

Step 2: Calculate the moles corresponding to 20.00 g of KCl

The molar mass of KCl is 74.55 g/mol.

20.00 g × 1 mol/74.55 g = 0.2683 mol

Step 3: Calculate the volume of the solution

Molarity is equal to moles of solute divided by liters of solution.

M = moles of solute / volume of solution

volume of solution = moles of solute / M

volume of solution = 0.2683 mol / (0.2560 mol/L)

volume of solution = 1.048 L = 1048 mL

Kc = [H3O+][HCO3-] / [H2CO3]

Remember that Kc is products over reactants. Also, you do not include liquid water in a Kc expression, since liquid water has no concentration.

Answer:

A tundra has a lower average temperatures year-round.

Answer:

Machical  Engery

Electrical Engery

Rhermal Engery  

Sound Energy  

Explanation:

Explanation:

There are five types of kinetic energy:

Thus, There are five types of kinetic energy

-TheUnknownScientist

Answer:

1.1 × 10² g

Explanation:

Step 1: Given data

Step 2: Calculate the moles of Mg(NO₃)₂ (solute)

Molarity is equal to the moles of solute (n) divided by the liters of solution.

C = n/V

n = C × V

n = 0.50 mol/L × 1.500 L = 0.75 mol

Step 3: Calculate the mass corresponding to 0.75 moles of Mg(NO₃)₂

The molar mass of Mg(NO₃)₂ is 148.3 g/mol.

0.75 mol × 148.3 g/mol = 1.1 × 10² g

Answer:

Explanation:

E = (hc)/(λ)

E = (6.624x10^(-27))Js x ((3×10^8)ms^(-1)) /

(77.8x10^(-9)m)

E = 2.55 x 10^(-11) J

Answer:

1040%

Explanation:

To solve this question we must convert the mass of Iron to moles in order to find limiting reactant. With limiting reactant we can find the theoretical moles of hydrogen and theoretical mass:

Percent yield = Actual yield (5.40g) / Theoretical yield * 100

Moles Fe -Molar mass: 55.845g/mol-:

10.3g * (1mol / 55.845g) = 0.184 moles of Fe will react.

For a complete reaction of these moles there are necessaries:

0.184 moles Fe* ( 3 mol H2SO4 / 2 mol Fe) = 0.277 moles H2SO4.

As there are 14.8 moles of the acid, Fe is limiting reasctant.

The moles of H2 produced are:

0.184 moles Fe* ( 3 mol H2 / 2 mol Fe) = 0.277 moles H2

The mass is:

0.277 moles H2 * (2.016g/mol) = 0.558g H2

Percent yield is:

5.40g / 0.558g * 100 = 1040%

It is possible the experiment wasn't performed correctly

Answer:

ano po ito?? isa po ba itong story

Answer:

mid ocean ridge

Explanation:

Answer:

What is your question?

Explanation:

Can you give more context to ur question?

For the given exothermic process at equilibrium, an increase in the concentration of CO would increase the amount of H₂.

When a perturbation is done on a system at equilibrium, it shifts its equilibrium position to counteract the perturbation.

Let's consider the following exothermic process at equilibrium.

CO(g) + H₂O(g) ⇌ CO₂(g) + H₂(g)

Which of the following changes would increase the amount of H₂(g) present in the equilibrium mixture?

For the given exothermic process at equilibrium, an increase in the concentration of CO would increase the amount of H₂.

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Answer:

its A

Explanation:

The only one that makes sense

Answer:

0.0542 M

Explanation:

Let;

CA = concentration of Ce4+ solution = 0.1741 M

VA = volume of Ce4+ solution = 18.68 mL

CB = concentration of H3AsO3 = ?

VB  = volume of H3AsO3 = 30.00 mL

NA = Number of moles of Ce4+ solution = 2

NB = Number of moles of H3AsO3  = 1

From;

CAVA/CBVB = NA/NB

CAVANB = CBVBNA

CB = CAVANB/VBNA

CB = 0.1741 * 18.68 * 1/30.00 * 2

CB = 0.0542 M

Answer:

True

Explanation:

tighter the molecules the slower it moves and the harder it gets

solid has very tight particles packed together

gas has its particles spread out

Answer:

[H⁺] = 2.57x10⁻⁶ M

Explanation:

This problem can be solved using the definition of pH:

pH = -log[H⁺]

Now we isolate [H⁺] in the equation:

-pH = log[H⁺]

[tex]10^{-pH}[/tex]=[H⁺]

As we are given the pH by the problem, we can now proceed to calculate the [H⁺]:

[H⁺] = [tex]10^{-5.59}[/tex]

[H⁺] = 2.57x10⁻⁶ M

Thus, when the pH of a solution is 5,59; the molar concentration of H⁺ species is 2.57x10⁻⁶.

Answer:

1.57 mol NaN₃

Explanation:

First we use PV=nRT to calculate the number of N₂ moles that need to be produced:

Inputing the data:

And solving for n:

Finally we convert N₂ moles into NaN₃ moles, using the stoichiometric coefficients of the balanced reaction:

Answer:

Judges and justices serve no fixed term — they serve until their death, retirement, or conviction by the Senate. By design, this insulates them from the temporary passions of the public, and allows them to apply the law with only justice in mind, and not electoral or political concerns.

Answer:

[tex][NO_2]=0.112M[/tex]

Explanation:

Hello there!

In this case, since the second-order integrated law is given by the following equation:

[tex]\frac{1}{[NO_2]} =\frac{1}{[NO_2]_0}+kt[/tex]

Thus, given the initial concentration of the nitrogen dioxide gas, the rate constant and the elapsed time, we obtain:

[tex]\frac{1}{[NO_2]}= \frac{1}{0.477M} +0.54M^{-1}s^{-1}\\\\\frac{1}{[NO_2]}=8.933M^{-1}[/tex]

[tex][NO_2]=\frac{1}{8.933M^{-1}} =0.112M[/tex]

Best regards!

Answer:

Explanation:The pi-molecular orbitals in propene (CH3-CH=CH2) are essentially the ... This central carbon thus provides two p-orbitals – one for each pi bond – and these two different p-orbitals have to be perpendicular, leading to a twisted structure as shown: ... It all comes down to where the location of the electron-deficient carbon  

Answer:

a) alab

Explanation:

Two of the main macromolecules are proteins and nucleic acid, and a polysaccharide is multiple monomers (monosaccharide) that join to create another macromolecule called carbohydrates.

Answer:

0.60 moles

Explanation:

From the reaction:

[tex]2C_2H_2 + 5O_2 \to 4CO_2+2H_2O[/tex]

From above, Only 2 moles of CH2CH2 are required to produce 2 moles of water (H_2O).

As such, 0.6 moles of H2O will require:

x (CH2CH2) × 2 moles of (H_2O)  = 0.6 moles (CH2CH2) × 2 mole of (H_2O)

x mole of  (CH2CH2) = 0.60 moles

∴

0.6 moles of H2O will require 0.60 moles of CH2CH2

Answer:

F<S<Na<Ga<Sr

Explanation:

Atomic radius increased from the right of the periodic table to left, and from the top to the down

Answer: The rusting of iron is more of a disadvantage than an advantage. Rusting forms an iron oxide which is more brittle than the iron. It less resistance to environmental degradation and permeability by water and air, therefore cannot be used for coating.

Explanation: plzz mark as brainliest

Answer: The initial volume of gas was [tex]282cm^3[/tex]

Explanation:

Charles's Law: This law states that volume is directly proportional to temperature of the gas at constant pressure and number of moles.

[tex]V\propto T[/tex]     (At constant pressure and number of moles)

[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]  

where,

[tex]V_1[/tex] = initial volume of gas   =?

[tex]V_2[/tex] = final volume of gas = [tex]212cm^3[/tex]  

[tex]T_1[/tex] = initial temperature of gas  = [tex]122.0^0F=323.15K[/tex]    

[tex](32^0C=273.15K)[/tex]

[tex]T_2[/tex] = final temperature of gas  = [tex]-23.0^0F=242.59K[/tex]

[tex]\frac{V_1}{323.15}=\frac{212}{242.59}[/tex]  

[tex]V_2=282cm^3[/tex]

Therefore, the initial volume of gas was [tex]282cm^3[/tex]

50 moles

Mole= Molarity*Volume(in Litre)

So after putting the value

= (25)*(2)

=50 moles

What is molarity?

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