Formic acid, hcooh, is a weak electrolyte. what solutes are present in an aqueous solution of this compound? write the chemical equation for the ionization of hcooh.

The formula for Boron Trihydride is BH₃.

Boron Trihydride is a chemical compound that is made up of one boron atom and three hydrogen atoms. The boron atom is in the center of the molecule, and the three hydrogen atoms are bonded to the boron atom.

The boron atom has three valence electrons, and the hydrogen atoms each have one valence electron. The valence electrons of the boron atom and the hydrogen atoms are shared to form covalent bonds.

The shape of the boron trihydride molecule is trigonal planar. The three hydrogen atoms are arranged in a plane around the boron atom, and the boron atom is at the center of the plane.

Boron trihydride is a colorless, odorless gas that is flammable. It is used as a precursor to other boron compounds, and it is also used as a fuel in some rocket engines.

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A reaction is endothermic if the energy required to break the bonds in the reactants is greater than the energy released when forming the bonds in the products. Conversely, a reaction is exothermic if the energy released when forming the bonds in the products is greater than the energy required to break the bonds in the reactants.

Bond energy is the amount of energy required to break a chemical bond between atoms in a molecule. The concept of bond energy is crucial in understanding the thermodynamics of a chemical reaction, specifically whether a reaction is endothermic or exothermic.

In an exothermic reaction, the total energy of the products is lower than the total energy of the reactants. This means that the energy released when the bonds in the products are formed is greater than the energy absorbed to break the bonds in the reactants. As a result, the reaction releases energy to the surroundings in the form of heat. The overall energy change (H) for an exothermic reaction is negative because the system loses energy to the surroundings.

Mathematically, for an exothermic reaction:

[tex]\[ \text{Energy of reactant bonds} < \text{Energy of product bonds} \][/tex]

[tex]\[ \Delta H = \text{Energy of product bonds} - \text{Energy of reactant bonds} < 0 \][/tex]

In contrast, an endothermic reaction requires an input of energy to proceed because the energy needed to break the bonds in the reactants is greater than the energy released when forming the bonds in the products. The reaction absorbs energy from the surroundings, resulting in a positive H.

For an endothermic reaction:

[tex]\[ \text{Energy of reactant bonds} > \text{Energy of product bonds} \][/tex]

[tex]\[ \Delta H = \text{Energy of product bonds} - \text{Energy of reactant bonds} > 0 \][/tex]

To determine whether a reaction is endothermic or exothermic from bond energies, one would calculate the sum of the bond energies of the reactants and compare it to the sum of the bond energies of the products. If the reactants bond energy is greater, the reaction is endothermic; if the products bond energy is greater, the reaction is exothermic.

In summary, the comparison of the energy required to break bonds in the reactants to the energy released when forming bonds in the products determines whether a reaction is endothermic or exothermic. This concept is fundamental to understanding the energy changes that occur during chemical reactions.

The nucleus is the central part of the atom that has been constituted of neutrons and protons. It is the largest part of the atom but does not take most space. Thus, the statement is false.

An atom has been the unit that makes the element or the matter. It has been constituted of sub-atomic particles that include electrons, neutrons, and protons. They differ in charge and mass they carry.

The electron is present in the orbitals around the nucleus of the shell, whereas, the protons and neutrons are held together by the nuclear force in the nucleus of the atom. The nucleus is a massive and large part of the atom.

Though it is massive, it does not occupy a large space as it takes up very less space around 0.1% of the atom which is very small as compared to the rest of the nucleus.

Therefore, the statement is false.

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The atomic number of calcium is 20. Therefore, the Electronic configuration of calcium is (2,8,8,2).

Therefore, The atomic number of calcium is 20. Therefore, the Electronic configuration of calcium is (2,8,8,2).

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The electron configuration of calcium, which has 20 electrons, is [Ar]4s². This notation indicates that calcium has the same electron configuration as the noble gas argon (Ar) with an additional two electrons in the 4s orbital.

The electron configuration of an atom describes the distribution of its electrons among the orbitals. For calcium, which has 20 electrons, the electron configuration can be written using the Aufbau principle where electrons fill from lower to higher energy orbitals. Calcium (Ca) with an atomic number 20 has the following electron configuration:

[Ar]4s²

Here's how the configuration is built up step by step:

The symbols [He], [Ar], etc., represent the noble gas core configurations, which summarize the configurations of the inner, filled shells. For calcium, [Ar] stands for the configuration of argon, signifying that Ca has the same inner shell configuration as Ar plus two additional electrons in the 4s orbital. This shorthand notation is used for convenience to avoid writing out the full electron configuration every time.

What happens when pop the top off a bottle or a can of soda?

The soda, or fizzy drink, bubbles, sometimes furiously. The gas was in solution, in equilibrium with the gas above the solution under the stopper. Remove the stopper, and equilibrium must AGAIN be attained. How does this occur? By the bubbling of gas from the solution into the atmosphere.

And thus if you open a can or bottle of fizzy drink, or pop, or beer, or champagne, eventually the drink will go flat.........after all the gas comes out of the solution.

Answer:

A substance that contains carbon  

✔ may be organic or inorganic

. The substance  

✔ is organic

if carbon is bonded to hydrogen. The substance  

✔ is inorganic

if carbon is not bonded to hydrogen.

Explanation: