The complete balanced equation for the reaction between barium hydroxide and acetic
acid is

Answer:

THE answer is all of above

Explanation:

Answer: In liquid water, water molecules are moving faster. They are still close together, but they are no longer stuck in a rigid pattern as they are in ice. Water molecules in liquid water are constantly sliding past and bumping into each other; they keep moving from one place to another.

Answer:

they are different forms

Explanation:

ice is solid

and water is liquid

they also have different densities

Answer: The enthalpy of the overall chemical equation is -205.7 kJ

Explanation:

Hess's law is defined as the law which states that the total amount of heat absorbed or released for a given chemical reaction will remain the same whether the process occurs in one step or several steps.

In this law, a chemical equation is treated as an ordinary algebraic expression that can be added or subtracted to yield the required overall equation.  

The enthalpy change or heat of the overall reaction is the summation of the enthalpies or heats of the intermediate reactions involved in the process.

The given overall chemical equation follows:

[tex]CH_4(g)+4Cl_2(g)\rightarrow CCl_4(g)+4HCl(g);\Delta H^o_{rxn}[/tex]

The intermediate equations for the above reaction are:

(1)  [tex]CH_4(g)\rightarrow C(s)+2H_2(g);\Delta H_1=74.6 kJ[/tex]

(2)  [tex]CCl_4(g)\rightarrow C(s)+2Cl_2(g);\Delta H_2=95.7kJ[/tex]

(3)  [tex]H_2(g)+Cl_2(g)\rightarrow 2HCl(g);\Delta H_3=-92.3kJ[/tex]

According to Hess law, the enthalpy of the reaction becomes:

[tex]\Delta H^o_{rxn}=[1\times (\Delta H_1)] + [1\times (-\Delta H_2)] + [2\times (\Delta H_3)][/tex]

Putting values in above expression, we get:

[tex]\Delta H^o_{rxn}=[1\times (74.6)] + [1\times (-95.7)] + [2\times (-92.3)]\\\\\Delta H^o_{rxn}=-205.7kJ[/tex]

Hence, the enthalpy of the overall chemical equation is -205.7 kJ

Answer:1. Ethanol + Dioxygen = Carbon Dioxide + Water

Explanation:

Answer:

3

Explanation:

its the 3 one it is

Answer:

The Correct Answer is " Energy"

Goodluck Guys

Explanation:

During nuclear fission and fusion, what is matter that seems to disappear actually converted into energy and the correct option is option 2.

here are two types of nuclear reactions called nuclear fission and nuclear fusion. These nuclear reactions involve the disintegration and combination of the elemental nucleus.

Nuclear fission refers to the breaking or splitting of a large or parent atom into smaller ones, or two or more daughter atoms.

The term 'nuclear fusion' refers to the process by which two or more atoms combine to form a larger atom. The nuclear fusion process is endothermic because it requires absorbing energy to fuse two atoms.

Both fission and fusion are nuclear reactions that produce energy.

Therefore, During nuclear fission and fusion, what is matter that seems to disappear actually converted into energy and the correct option is option 2.

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Answer:

Para ser mas exactos una reaccion quimica es donde los reactivos se transforman en productos.

Explanation:

Durante las reacciones quimicas, ocurren ciertas transformaciones que hace que se tome o se libere energia del medio, generando que los reactivos de la reaccion, es decir los compuestos iniciales, en un determinado espacio y tiempo bajo ciertas condiciones de presion y temperatura exactas se transformen en productos.

Para la quimica, la misma cantidad de materia que se encuentra en los reactivos se mantendra en los productos, es por eso que cada reaccion quimica debe respetar las reglas de la estequiometria y estar balanceadas a la perfeccion.

Answer:

O-H F-H N-Hy

Explanation:

C-H N-H O-H F-H

Answer:

D. A measure of the acidity of the solution

Explanation:

pH is a measure of how acidic or basic a solution is, and is measured on a scale from 0-14, where 7 is neutral, anything less than 7 is acidic, and anything more than 7 is basic.

Answer:

50.28 grams

Explanation:

hope this helps

Answer:

When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode

Answer:

Explanation:

CaCO3 = 1*Ca + 1*C + 3*O

              =1*40 + 1*12 + 3*16

               =40 + 12 + 48

               =100 amu

Answer:

Zinc oxide is a metal oxide the term best describes the nature of zinc oxide is an amphoteric oxide.

Explanation:

Please Mark me brainlist

Answer:

I think it's D cause one of the requirements for a planet is that it has to revolve around a star

Answer:

Mg is the limiting reactant

The theoretical yield is 105.2 g of Mg3N2

Explanation:

3Mg(s) + N2(g) -----> Mg3N2(s)

Number of moles of Mg = 75g/24g/mol = 3.125 moles

3 moles of Mg yields 1 mole of Mg3N2

3.125 moles of Mg yields 3.125 × 1/3 = 1.042 moles of Mg3N2

Number of moles of N2 = 45g/28g/mol = 1.607 moles

1 mole of N2 yields 1 mole of Mg3N2

1.607 moles of N2 yields 1.607 moles Mg3N2

Hence, Mg is the limiting reactant

The theoretical yield of Mg3N2 = 1.042 moles of Mg3N2 × 101 g/mol = 105.2 g of Mg3N2

Hola aquí va la respuesta!

Se fomentó la inmigración europea porque la economía no era buena y vinieron a Paraguay para mejorar su situación.

Hola aquí va la respuesta!

Se fomentó la inmigración europea porque la economía no era buena y vinieron a Paraguay para mejorar su situación.

Which is the best reason to carry out scientific research on climate change?

A. To help people prepare for the future

C. To elect better-informed politicians

D. To win political debates

Answer:

to create jobs for scientists

Answer:

Answer:

A. An electron gains or loses energy and moves between continuous

energy levels.

Answer:

Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. Biomass refers to organic material from plants or animals. This includes wood, sewage, and ethanol (which comes from corn or other plants).

five examples of renewable resources

Solar energy.

Wind energy.

Geothermal energy.

Hydropower.

Bioenergy.

I hope it help you

Answer:

The most popular renewable energy sources

currently are

Solar energy

Wind energy

Hydro energy

Tidal energy

Geothermal energy

Biomass energy

Answer:

1.20 grams

Explanation:

Correct on edmentum/plato

Answer: 1.20 grams

Explanation:

Answer:

Magnesium hydroxide, Mg(OH)2, is an Arrhenius base and therefore also a Brønsted-Lowry base.

However, water can also act as a base by accepting a proton from an acid to become its conjugate base, H3O+. where Al(OH)3 is acting as a Lewis Base.

Explanation:

Arrhenius acids and bases

An Arrhenius acid is any species that increases the concentration of H+start text, H, end text, start superscript, plus, end superscript in aqueous solution.

An Arrhenius base is any species that increases the concentration of OH−start text, O, H, end text, start superscript, minus, end superscript in aqueous solution.

Answer:

Insulation reduces the exchange of heat through a surface such as a wall, attic, duct or roof. In a well-insulated home, less warm air escapes from the house during the winter, and less cool air escapes during the summer, reducing the amount of energy needed for heating and cooling

Answer:

0.48

Explanation:

[tex]i = \frac{v}{r} [/tex]

because we are looking for I which is current we say

I = 12÷25 which is 0.48.

The current flowing through the resistor is 0.48 A.

The resistor is a length of wire which resists the flow of current.

According to Ohm's law, the potential difference is proportional to the current flowing in the circuit.

V =I R   where R is the resistance.

Given is the resistance of resistor R = 25Ω and the voltage drop V =12 Volt, then the current through the resistor will be

I =V/R

I = 12/25

I =0.48 A

Thus, the current in resistor is 0.48 Amperes.

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Answer:

Key Concepts

The hydrogen ion concentration in a solution, [H+], in mol L-1, can be calculated if the pH of the solution is known.

pH is defined as the negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1 pH = -log10[H+] ...

[H+] in mol L-1 can be calculated using the equation (formula): [H+] = 10-pH

More items...

Explanation:

Answer:

[tex]pH = - log[H {}^{ + } ] \\ 6.5 = - log[H {}^{ + } ] \\ [H {}^{ + } ] = {10}^{ - 6.5} \\ [H {}^{ + } ] = 3.16 \times {10}^{ - 7} \: mol {dm}^{ - 3} [/tex]

Answer:

22.98977

Explanation:

don't worry about that

Explanation:

85 g Na × (1 mol Na/22.9898 g Na)

= 3.7 mol Na

Answer:

https://socratic.org/questions/how-much-heat-is-required-to-convert-5-88-g-of-ice-at-12-0-c-to-water-at-25-0-c-

Explanation:

Hey there! A simple explanation is below.

Answer:

D) is a single phase homogeneous mixture.

Explanation:

A solution is a form of homogenous combination made up of two or more components in chemistry. A solute is a material that is dissolved in another material, known as a solvent, in such a combination. The mixing of a solution takes place at a scale where the effects of chemical polarity are present, resulting in solvation-specific interactions. In most cases, the solution is in the condition of the solvent, because it is most common in the mixture.