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4 years ago

Is calcium and chlorine am Ionic bond? Yes

Chemistry

2 answers:

WINSTONCH [101]4 years ago

6 0

Answer:

Calcium and Chlorine form ionic compound.

Explanation:

Ionic compounds are formed when there is a transfer of electrons from the metallic atom to the non-metallic atom. Ionic compounds can only be formed between a metal and a non metal.

Calcium is the metal and chlorine is the non-metal. Calcium will form ionic bond with chlorine by transferring two electrons to the chlorine atom to become calcium ion(Ca^2+) and the chlorine atom becomes chloride ion (Cl^-). This can be illustrated in the equation below

1. Ca —> Ca^2+ + 2e^-

2. Cl2 + 2e^- —> Cl2^-

Combining 1 and 2

Ca +Cl2 +2e^- —>Ca^2+ + Cl2^- + 2e^-

The electrons will cancel out, forming

Ca + Cl2 —> Ca^2+Cl2^- (ionic compounds)

iren2701 [21]4 years ago

3 0

An ionic compound is made up of two or more metals and non-metals
A covalent compound is made up of two or more non-metals.
Therefore calcium (non-metal) and chlorine(non-metal) make up a covalent compound

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3 years ago

Write the oxidation and reduction half reactions;

luda_lava [24]

Answer:

$Fe^{2+}$ ⇒ $Fe^{3+}+e^-$

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$Cr^{3+}+e^-$ ⇒ $Cr^{3+}$

Explanation:

Remember that positive number superscripts mean electrons lack and negative numbers mean electrons 'excess' (if we compare it with the neutral element). So, for the case of Fe2+ which is converted to Fe3+, we know that in Fe2+ there is a two electrons lack, while in Fe3+ there is a 3 electrons lack; it means that Fe2+ was converted to Fe3+ but releasing one electron:

$Fe^{2+}$ ⇒ $Fe^{3+}+e^-$

The same analysis is applied to Br2; Br2 is a molecule which is said to have a zero superscript because it is an apolar covalent bond; and it is converted to Br-, which, according to what I wrote above, means that there is a one electron excess. So, Br2 must have received an electron in order to change to Br-; but Br2 can't change to Br- as simple as that because Br2 is a molecule, not an atom; it is a molecule that has two Br atoms, so, Br2 must give two Br- ions as products, but receiving one electron for each one:

$Br_2+2e^-$ ⇒ $2Br^-$

Applying the same, in Mg2+ there is a 2 electrons lack, and in Mg is not electron lack (its superscript is zero), so Mg must have released two electrons in order to change to Mg2+:

$Mg$ ⇒ $Mg^{2+}+2e^-$

Cr3+ has a 3 electrons lack, and Cr2+ a two electrons one, so, Cr3+ must receive an electron to convert to Cr2+:

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lakkis [162]

I don’t know this, so I did research, so here! This is from a website called “Quora”, btw!
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3 years ago

A 800N mountain climber scales a 160m cliff. How much work is done by the mountain climber?

Fittoniya [83]

Answer:

Work done, W = 128 kJ

Explanation:

Given that,

Weight of a mountain climber, F = 800 N

It climbs to a cliff that is 160 m high.

We need to find the work done by the mountain climber. The work done by an object is given by the formula as follows :

W = Fd

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2 years ago

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aleksley [76]

Answer:

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Explanation:

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