Which of the following statements are correct about the chemical reaction?H2 + O2 -> H2O2
versus
2 H2 + O2 -> 2 H2O?
They are both balanced chemical equations.
The two reactions are equivalent.
The laws of thermodynamics apply to both.
Conservation of mass applies to both.

Answers

Answer 1

Answer: The correct answer for the question that is being presented above is this one: "They are both balanced chemical equations." The statement that is correct about the chemical reaction is that both chemical reaction are balanced chemical equations.

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which atomic particle determines the chemical behavior of an atom the nucleus, neutron, electron, proton or none of these

Answers

The chemical behavior of an atoms is determine by the formation or destruction of chemical bonds. The chemical bonds are the result of the interaction of the electrons of the atoms. Chemical properties of the atoms are given by how attached are the shell electrons attached to the nucleus and how they interact with other atoms. Chemical changes are the result of exchange valence electrons of the atoms. So, the answer is the atomic particle that determines the chemical behavior of an atom is the electron, because it is the particle that is active in chemical bonding.

The electron is the primary atomic particle that determines an atom's chemical behaviour.

Electrons are negatively charged particles that form electron shells or energy levels around an atom's nucleus. They are engaged in the production and breaking of chemical bonds, hence they play an important part in chemical reactions.

The quantity and configuration of electrons in an atom's outermost energy level (valence electrons) are very significant in determining the chemical characteristics of the atom. Because of the identical number of valence electrons, elements in the same group or column of the periodic table frequently show similar chemical behaviour.

To know more about electron, here:

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Hydrogen chloride, HCl, is classified as an Arrhenius acid because it produces(1) H+ ions in aqueous solution(2) Cl– ions in aqueous solution(3) OH– ions in aqueous solution(4) NH4+ ions in aqueous solution

Answers

Answer: (1) H+ ions in aqueous solution

The lewis structure of n2h2 shows __________.a.a nitrogen-nitrogen triple bond
b.a nitrogen-nitrogen single bond
c.each nitrogen has one nonbinding electron pair
d.each nitrogen has two nonbinding electron pairs
e.each hydrogen has one nonbonding electron pair

Answers

The Lewis structure of Diimide (N₂H₂) is shown below.

In this molecule two Nitrogen atoms attached to each other through a double bond are further attached to one one Hydrogen atom. Also, each Nitrogen atom carries one non-binding electron pair (Lone Pair) (Highlighted RED).

Result:
Option-C (each nitrogen has one nonbinding electron pair) is the correct answer.

The lewis structure of n2h2 shows

c. each nitrogen has one nonbinding electron pair

Lewis structures are diagrams that show the bonds between the atoms of a molecule and the lone pair of electrons that might exist in a molecule.

Further Explanation

Lewis structures can be drawn for each covalently bonded molecule, as well as coordination compounds. The Lewis structure is named after Gilbert N. Lewis, who introduced in his 1916 article The Atom and the Molecule. The Lewis structure extends the concept of the electron point diagram by adding lines between atoms to represent pairs together in chemical bonds.

The Lewis structure shows each atom and its position in the molecular structure using its chemical symbol. Lines are drawn between atoms that are bound to one another (pairs of dots can be used instead of lines). The excess electrons that make up lonely pairs are represented as pairs of points and are placed next to the atom.

The number of electrons represented in the Lewis structure is equal to the number of valence electrons in each atom. Non-valence electrons are not represented in the Lewis structure.

In the case of Lewis structures, formal charges are used in the description, comparison, and assessment of the topological and resonant structures that might occur by determining the apparent electron charge of each atom, based on the structure of the electron points, assuming exclusive covalence or non-polar bonds. Formal charges have been used in determining possible electron reconfigurations when referring to reaction mechanisms, and often produce the same sign as the partial charge of atoms, with the exception.

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Lewis structures brainly.com/question/9736616

Atom/Electron brainly.com/question/9736616

Details

Class: High School

Subject: Chemistry

Keyword: lewis, Structure, electron

4.00 × 1023 molecules of H3PO4 have an approximate mass of

Answers

Answer : The approximate mass of $H_3PO_4$ is 65 grams.

Explanation :

First we have to calculate the moles of $H_3PO_4$ .

As, $6.022* 10^(23)$ molecules of $H_3PO_4$ present in 1 mole of $H_3PO_4$

So, $4.00* 10^(23)$ molecules of $H_3PO_4$ present in $(4.00* 10^(23))/(6.200* 10^(23))=0.664$ mole of $H_3PO_4$

Now we have to calculate the mass of $H_3PO_4$ .

$\text{Mass of }H_3PO_4=\text{Moles of }H_3PO_4* \text{Molar mass of }H_3PO_4$

Molar mass of $H_3PO_4$ = 98 g/mole

$\text{Mass of }H_3PO_4=0.664mole* 98g/mole=65.072g\approx 65g$

Therefore, the approximate mass of $H_3PO_4$ is 65 grams.

1 mole --------- 6.02 x 10²³ molecules
? mole --------- 4.00 x 10²³ molecules

moles = (4.00 x 10²³) x 1 / 6.02 x 10²³

moles = ( 4.00 x 10²³) / ( 6.02 x 10²³ )

= 0.6644 moles

Molar mass H₃PO₄ = 98.0 g/mol

mass = 0.6644 x 98.0 = 65.1112 g

hope this helps!

Rob measures the solubility of three different salts in water at 22°C. Which type of graph should he use to display his data? bar graph line graph histogram scatterplot

Answers

The best graph Rob can use to show his data is a scatter plot. A scatter plot shows a relationship between two sets of data in this case the solids and their respective solubility. A scatter plot is very specific in showing how one variable is affected by another variable.

Answer:

bar graph

Explanation:

hope it helps

How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCl?