11A) As electrical energy is converted into heat energy, the total amount of energy in the system
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Answer:

equation (D) is not balanced

balanced

2NaCl + H2SO4 —> Na2SO4 + 2HCl

The chemical equation not balanced is:

NaCl  +  H₂SO₄  →  Na₂SO₄  +  HCI

A chemical equation can be described as the reactants involved in the reaction, products produced, and an arrow denoting the direction of the chemical reaction. The chemical equation is a way to represent the chemical reaction in a short way.

A balanced equation in which the number of atoms of each element is equal on both sides of the chemical equation.

The law of conservation of mass is needed to follow while balancing the equation. The total mass of the elements on both sides (reactant and product side) in a balanced chemical equation.

NaCl  +  H₂SO₄  →  Na₂SO₄  +  HCI is not a balanced chemical equation as the number of hydrogen and sodium on both sides. The balanced chemical equation will be:

2 NaCl  +  H₂SO₄  →  Na₂SO₄  + 2 HCI

Learn more about the balanced chemical equation, here:

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Answer:

.-.

Explanation:

Answer:

C I think from what I did to solve!!

Answer: Grams solid x mol/g x AHfusion

Explanation:

Answer:

V = 38.48 L

Explanation:

Given that,

No. of moles = 1.5 mol

Pressure, P = 700 torr

Temperature, T = 15°C = 288 K

We need to find the volume of the gas. The ideal gas equation is given by :

[tex]PV=nRT\\\\V=\dfrac{nRT}{P}\\\\V=\dfrac{1.5\times 62.36\times 288}{700}\\\\V=38.48\ L[/tex], R = L.Torr.K⁻¹.mol⁻¹

So, the required volume is equal to 38.48 L.

Answer:

234.4 K

Explanation:

Using the combined gas law equation as follows;

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (atm)

P2 = final pressure (atm)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the provided information,

P1 = 1.00atm

P2 = 2.00 atm

V1 = 5.00L

V2 = 2.00L

T1 = 20°C = 20 + 273 = 293K

T2 = ?

Using P1V1/T1 = P2V2/T2

1 × 5/293 = 2 × 2/T2

5/293 = 4/T2

Cross multiply

293 × 4 = 5 × T2

1172 = 5 T2

T2 = 1172 ÷ 5

T2 = 234.4 K

Answer:

Explanation:

A- nuclear fusion

When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.

In chemistry, we define the temperature of a substance as the average kinetic energy of all the atoms or molecules of that substance. Not all of the particles of a substance have the same kinetic energy. At any given time, the kinetic energy of the particles can be represented by a distribution.

In physics, temperature is defined as the average kinetic energy of the particles in an object. ... When particles move more quickly, temperature is higher and an object feels warmer. When particles move more slowly, temperature is lower and an object feels cooler.

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Answer:

Jupiter and Saturn are the two biggest planets

Answer:

4

3

2

6

1

5

I hope this helped!

Answer:

Since HCl is a strong acid, it completely ionizes, and the pH of HCl in solution can be found from the concentration (molarity) of the H+ ions, by definition equal to 0.100 M. (The conjugate base of the acid, which is the chloride ion Cl–, would also have a concentration of 0.100 M.) The pH is thus –log(0.100) = 1.000.

Explanation:

Answer:

1.52 M

Explanation:

Molarity of a solution is calculated as follows:

Molarity = number of moles (n) ÷ volume (V)

Based on the information given in this question,

Volume of soda (V) = 9.13 L

number of moles = 13.83 mol

Molarity = 13.83 ÷ 9.13

Molarity = 1.52 M

Answer:

baho kag bilat sige ka ug palubut

Explanation:

sige ka ug eyut

Answer:

Temperate Deciduous Forest

Explanation:

Answer:

Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids.

Explanation:

Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids. A radioactive tracer is a chemical compound in which one or more atoms have been replaced by a radioisotope.

heres the link for more information

https://www.iaea.org/topics/radiotracers#:~:text=Radioactive%20tracers%20are%20widely%20used,been%20replaced%20by%20a%20radioisotope

.

Answer: When maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas then balanced equation is [tex]MnO_{2} + 4HCl \rightarrow 2H_{2}O + MnCl_{2} + Cl_{2}[/tex].

Explanation:

The word equation is given as maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas.

Now, in terms of chemical formulae this reaction equation will be as follows.

[tex]MnO_{2} + HCl \rightarrow H_{2}O + MnCl_{2} + Cl_{2}[/tex]

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

Number of atoms on product side are as follows.

To balance this equation, multiply HCl by 4 on reactant side and multiply [tex]H_{2}O[/tex] by 2 on product side. Therefore, the equation can be rewritten as follows.

[tex]MnO_{2} + 4HCl \rightarrow 2H_{2}O + MnCl_{2} + Cl_{2}[/tex]

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

Number of atoms on product side are as follows.

Since, this equation contains same number of atoms on both reactant and product side. Therefore, this equation is now balanced equation.

Thus, we can conclude that when maganese dioxide is added to hydrogen chloride you get water maganese dichloride and chlorine gas then balanced equation is [tex]MnO_{2} + 4HCl \rightarrow 2H_{2}O + MnCl_{2} + Cl_{2}[/tex].

Answer: IS B

Explanation:

Decomposition

Answer:

531.45 mL

Explanation:

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

Initial volume (V₁) = 500 mL

Initial temperature (T₁) = 45 °C

Final temperature (T₂) = 65 °C

Final volume (V₂) =?

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

Initial temperature (T₁) = 45 °C

Initial temperature (T₁) = 45 °C + 273

Initial temperature (T₁) = 318 K

Final temperature (T₂) = 65 °C

Final temperature (T₂) = 65 °C + 273

Final temperature (T₂) = 338 K

Finally, we shall determine the final volume of the gas. This can be obtained as follow:

Initial volume (V₁) = 500 mL

Initial temperature (T₁) = 318 K

Final temperature (T₂) = 338 K

Final volume (V₂) =?

V₁/T₁ = V₂/T₂

500 / 318 = V₂ / 338

Cross multiply

318 × V₂ = 500 × 338

318 × V₂ = 169000

Divide both side by 318

V₂ = 169000 / 318

V₂ = 531.45 mL

Therefore, the new volume of the gas is 531.45 mL

Answer:

d=0.4cm

t=0.25km

v=7s of 100m

i hope it helps you

this is my asnwer

correct me if im wrong

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3. Conducts electricity in aqueous solution.

Answer:

Rubbing the match against a rough surface

The activation energy is provided by friction between surfaces

Explanation:

Activation energy is the energy required to start a chemical reaction. It is the minimum energy that must be supplied for a reaction to proceed.

When we strike a match against a rough surface, what we are trying to do is to supply the required activation energy in the form of friction in order to get the combustion reaction started.

Hence, the activation energy for the combustion of a match head is supplied by friction when the match head is struck against a rough surface.

yes correctly ☺️☺️

Explanation:

thank you ❣️

Answer:

0.18 moles

Explanation:

Applying,

PV = nRT................... Equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.

make n the subject of the equation

n = PV/RT............... Equation 2

Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm,  R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.8316×5.3)/(0.083×295)

n = 0.18 moles

Answer:

memorise them

Explanation:

1, 2, skip metals, 3, 0, -3, -2, -1

We are given:

M1 = 3 Molar        V1 = 80 mL

M2 = x Molar        V2 = 100 mL

Finding the molarity:

We know that:

M₁V₁ = M₂V₂

where V can be in any units

(3)(80) = (x)(100)

x = 240/100                                          [dividing both sides by 100]

x = 2.4 Molar

Answer:

d) Combustión.

Explanation:

¡Hola!

En este caso, dado que estamos enfocados en el concepto de cambio químico, el cual se caracteriza por exhibir un cambio en la composición e identidad de las sustancias iniciales (reactivos) a otras finales (productos).

Ahora bien, como se nos dice que los productos de este cambio químico son energía, agua y dióxido de carbono, inferimos que el nombre de este proceso es d) Combustión, por ejemplo la combustion del gas natural para calentar nuestras comidas en la cocina.

¡Saludos!

Answer:

Synthesis Reaction

Explanation:

A synthesis reaction occurs when two or more reactants combine to form a single product. In a decomposition reaction, one reactant breaks down into two or more products. This is the reverse of a synthesis reaction. Replacement reactions occur when elements switch places in compounds.