How many molecules are in 3 moles of NaCl?

Naming Compounds Test Review Practice Name the following ionic compounds: NH4Cl _____________________________________ Fe(NO3)3 _

Mariulka [41]

Answer :

The name of $NH_4Cl$ is ammonium chloride.

The name of $Fe(NO_3)_3$ is iron(III) nitrate.

The name of $TiBr_3$ is titanium(III) bromide.

The name of $Cu_3P$ is copper(I) phosphide.

The name of $SnSe_2$ is tin(IV) selenide.

The name of $GaAs$ is gallium arsenide.

The name of $Pb(SO_4)_2$ is lead(IV) sulfate.

The name of $Be(HCO_3)_2$ is beryllium hydrogen carbonate.

The name of $Mn_2(SO_3)_3$ is manganese(III) sulfite.

The name of $Al(CN)_3$ is aluminium cyanide.

Explanation :

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

The nomenclature of ionic compounds is given by:

1. Positive is written first.

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

3. In case of transition metals, the oxidation state are written in roman numerals in bracket in-front of positive ions.

(a) $NH_4Cl$

It is an ionic compound because it is formed by the combination of one polyatomic cation (ammonium ion) and anion (chloride ion). The charge on ammonium ion is (+1) and the the charge on chloride ion is (-1).

Thus, the name of $NH_4Cl$ is ammonium chloride.

(b) $Fe(NO_3)_3$

It is an ionic compound because it is formed by the combination of one polyatomic anion (nitrate ion) and cation (iron ion). The charge on iron ion is (+3) and the the charge on nitrate ion is (-1).

Thus, the name of $Fe(NO_3)_3$ is iron(III) nitrate.

(c) $TiBr_3$

It is an ionic compound because it is formed by the combination of titanium cation and bromide anion. The charge on titanium is (+3) and the the charge on bromide ion is (-1).

Thus, the name of $TiBr_3$ is titanium(III) bromide.

(d) $Cu_3P$

It is an ionic compound because it is formed by the combination of copper cation and phosphorous anion. The charge on copper is (+1) and the the charge on phosphorous ion is (-3).

Thus, the name of $Cu_3P$ is copper(I) phosphide.

(e) $SnSe_2$

It is an ionic compound because it is formed by the combination of tin cation and selenium anion. The charge on tin is (+4) and the the charge on selenium ion is (-2).

Thus, the name of $SnSe_2$ is tin(IV) selenide.

(f) $GaAs$

It is an ionic compound because it is formed by the combination of gallium cation and arsenic anion. The charge on gallium is (+3) and the the charge on arsenic ion is (-3).

Thus, the name of $GaAs$ is gallium arsenide.

(g) $Pb(SO_4)_2$

It is an ionic compound because it is formed by the combination of one polyatomic anion (sulfate ion) and cation (lead ion). The charge on lead ion is (+4) and the the charge on sulfate ion is (-2).

Thus, the name of $Pb(SO_4)_2$ is lead(IV) sulfate.

(h) $Be(HCO_3)_2$

It is an ionic compound because it is formed by the combination of one polyatomic anion (hydrogen carbonate ion) and cation (beryllium ion). The charge on beryllium ion is (+2) and the the charge on hydrogen carbonate ion is (-1).

Thus, the name of $Be(HCO_3)_2$ is beryllium hydrogen carbonate.

(i) $Mn_2(SO_3)_3$

It is an ionic compound because it is formed by the combination of one polyatomic anion (sulfite ion) and cation (manganese ion). The charge on manganese ion is (+3) and the the charge on sulfite ion is (-2).

Thus, the name of $Mn_2(SO_3)_3$ is manganese(III) sulfite.

(j) $Al(CN)_3$

It is an ionic compound because it is formed by the combination of one polyatomic anion (cyanide ion) and cation (aluminium ion). The charge on aluminium ion is (+3) and the the charge on cyanide ion is (-1).

Thus, the name of $Al(CN)_3$ is aluminium cyanide.

3 0

3 years ago

Which element does the following box notation represent:

vazorg [7]

Answer:

D. yan trust meManiwala kalang

8 0

3 years ago

Consider NH3 and PH3. Electronegativities: P = 2.1, H = 2.1, N=3.0. Which statement is false?

NikAS [45]

Answer:

The P-H bonds are more polar than the N-H bonds.

Explanation:

Phosphine is a polar molecule with non-polar bonds. The phosphorus atom is bonded to three hydrogen atoms and the phosphorus atom has a lone pair of electrons. Since hydrogen and phosphorus are equal in electronegativity, it implies that they attract the shared pairs of electrons the same amount,hence bonding electrons are shared equally making the covalent bonds non-polar.

The lone pair of electrons on phosphorus causes the molecule to be asymmetrical with respect to charge distribution this is why the molecule is polar even though the are non-polar bonds in the molecule.

Looking at the values of electro negativity stated in the question, one can easily see that the difference in electro negativity between nitrogen and hydrogen is 0.9 while the difference in electro negativity between phosphorus and hydrogen is zero. It is clear that NH3 is naturally more polar than PH3 since each individual N-H bond in NH3 is a polar bond while the individual P-H bonds in PH3 are nonpolar.

4 0

3 years ago

A student is asked to determine the chemical formula for the compound Barium

Sphinxa [80]

Answer:

Are barium and chlorine a metal and nonmetal?

Explanation:

I had the same question, and my class reviewed the test and this was the answer to this question.

5 0

3 years ago

PLEASE I WILL PUT YOU AS BRAINLIEST, 20 POINTS

fiasKO [112]

Answer:

a light ray will always A light ray will always reflect away from a surface at an angle equal to the angle at which it struck the surface

Explanation:

it sound more formal and just plainly better

8 0

3 years ago

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