What does the name iron(ii) in a compound indicate about the cation?

Chemistry

2 answers:

artcher [175]4 years ago

7 0

2+ charge is the answer

bija089 [108]4 years ago

5 0

Answer:- $Fe^+^2$

Explanations:- Transition elements shows variable oxidation states. So, while naming these compounds we use the roman numerals to tell their oxidation states.

For example, if someone writes just Iron oxide then it would not be correct since Iron could be in +2 or +3 states. So, it might be $Fe^+^2$ or $Fe^+^3$ . So, the right was is to mention the oxidation state of the transition metal.

If the name is written as Iron(II) in a compound then it means there is +2 charge on iron and it is $Fe^+^2$ .

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Using the accompanying chart, calculate the volume of a Densities of Group 14 Elements tin block that has a mass of 95.04 grams

saw5 [17]

<u>Answer:</u> The volume of given mas of tin block at STP is $13.0cm^3$

<u>Explanation:</u>

To calculate volume of of the substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

We are given:

Mass of tin = 95.04 g

Density of tin = $7.31g/cm^3$

Putting values in above equation, we get:

$7.31g/cm^3=\frac{95.04g}{\text{Volume of tin}}\\\\\text{Volume of tin}=\frac{95.04g}{7.31g/cm^3}=13.0cm^3$

Hence, the volume of given mas of tin block at STP is $13.0cm^3$

5 0

4 years ago

What word or two-word phrase best describes the shape of the hydrogen cyanide ( hcn ) molecule?

elena-14-01-66 [18.8K]

Answer : Linear

Explanation : Hydrogen Cyanide (HCN) when drwan in the Lewis diagram shows carbon atom at the center with no lone electron pairs.

The carbon and nitrogen atoms are bonded through a triple bond which counts as "one electron pair".

The molecule has two electron pairs in all and appears to be linear.

Also, according to the VSEPR theory; the electron clouds on atoms around the carbon will try to repel each other.

They will get pushed apart, which gives HCN molecule a linear molecular geometry or shape.

The bond angle that is developed will be 180 degrees since it has a linear molecular geometry of HCN. The hybridisation observed in this molecule is SP.