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3 years ago

Composition about my favorite sport in french

Chemistry

1 answer:

ElenaW [278]3 years ago

3 0

Answer:

Le football est mon sport préféré. C'est aussi un sport célèbre dans le monde entier. En jouant au football, nous pouvons garder notre corps fort, en forme et flexible, jouer au football est un bon exercice et bon pour la santé. Il a besoin d'un terrain spacieux. Le nombre de joueurs nécessaires pour ce jeu est de vingt-deux. Il y a deux groupes. Chaque groupe compte onze joueurs. Chaque groupe a un gardien de but. Il y a un centre à partir duquel le jeu commence avec l'arbitre. Il a le pouvoir de commenter le bien ou le mal. Les joueurs doivent respecter les règles du sport. Si un joueur lui désobéit, il est disqualifié et sort du terrain de jeu. Lorsque le but est marqué des supporters, la joie n’a pas de limite. Des applaudissements passionnants sont visibles lorsqu'un but est marqué. Cette pièce est originaire d'Angleterre. Ensuite, il s'est répandu dans presque tous les coins et recoins du monde. Sa popularité augmente de jour en jour.

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andrezito [222]

This is a synthesis reaction, where 2 reactants combine to form a single product.

In decomposition, 1 reactant splits into 2 products.
In single replacement, one element swaps with another, in the form A + BC = B + AC.
In double displacement two elements swap, in the form AB + CD = AD + CB
In neutralization (a kind of double displacement), an acid and a base react to form water and a salt.

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4 years ago

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Order of metals from least reactive to most reactive: B <C <A <D

<h3>Further explanation</h3>

Reducing agents are substances that experience oxidation

Oxidizing agents are substances that experience reduction

The metal activity series is expressed in voltaic series

The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent

The more to the right, the metal is less reactive (harder to release electrons) and the stronger oxidizing agent

So that the metal located on the left can push the metal on the right in the redox reaction

Let's analyze the statement in the problem

I. Only A, C and D react with 1 mol/L HCl to give H₂(e)

M + HCl ⇒ MCl + H₂(MCl : alkali, MCl₂ : alkaline earth)

A, C and D can react with 1 mol / L HCl, meaning metals A, C and D are located to the left of element H (more reactive), and B in the right of element H

II. When A is added to solutions of the other metal ions, metallic B and C are formed but not D.

This means that metal A is more reactive than metals B and C, while D is more reactive than A, so metal D is the most reactive

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3 years ago

What element behaves MOST like magnesium (Mg)?<br> A) S <br> B) Si <br> C) Sn <br> D) Sr

tatyana61 [14]

Strontium (Sr). Elements in the same group of the periodic table have similar characteristics.

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what is the maximum number of covalent bonds that an oxygen atom with atomic number 8 can make with hydrogen? question 4 options

Oliga [24]

Maximum number of covalent bonds that an oxygen atom can make with hydrogen is 2.

the ground state electronic configuration of oxygen is 2s² 2p⁴ that means it has 6 electrons in its valence shell and require two electrons are required to complete its octate.
Two bonds are created when an electron donor atom shares the two needed electrons with oxygen. The ability of two oxygen atoms to share valence electrons results in the creation of a double bond between the two atoms.
There are no longer any empty orbitals in the octet of oxygen after it is complete. As a result, it is unable to accept more electrons or create more bonds.

Therefore, Oxygen can only generate two bonds because it needs two additional electrons to complete its octet, after which it will run out of empty orbitals in which to receive additional electrons and create additional bonds.

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1 year ago

What volume of 0.160 m li2s solution is required to completely react with 130 ml of 0.160 m co no3 2?

Over [174]

The volume of 0.160 m Li2S solution required to completely react with 130 ml of 0.160 CO(NO3)2 is calculated as below

write the reacting equation

Co(NO3)2 + Li2S = 2LiNO3 + COS

find the moles of CO(NO3)2 = molarity x volume

= 130 ml x 0.160=20.8 moles

since the reacting moles between CO(NO3)2 to LiS is 1:1 the moles of LiS is also 20.8 moles

volume of Lis is therefore = moles of Lis/ molarity of LiS

= 20.8/0.160 = 130 Ml

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3 years ago

Composition about my favorite sport in french​

Composition about my favorite sport in french