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3 years ago

Chromium has a smaller atomic radius than iron. * O True False

Chemistry

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

Answer:

False

Explanation:

Atomic radius is defined as the distance between the nuclei of 2 identical atoms that are bonded together

Now, from periodic tables, chromium has a calculated atomic radius of 1.66 Å while iron has a calculated atomic radius of 1.56 Å

Thus, chromium has a bigger atomic radius than iron.

So the statement is false.

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Sometimes, it depends.

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Koolaid is a solution. What is the solute? What is the solvent?

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4 years ago

A piece of an unknown metal has a volume of 19.8 ml and a mass of 210.0 grams. The density of the metal is g/mL A piece of the s

leva [86]

Answer: The density of the metal is 10.60 g/mL and the volume occupied by 86.0 grams is 8.11 mL

Explanation:

To calculate the density of unknown metal, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$ ......(1)

Volume of unknown metal = 19.8 mL

Mass of unknown metal = 210.0 g

Putting values in equation 1, we get:

$\text{Density of unknown metal}=\frac{210.0g}{19.8mL}\\\\\text{Density of unknown metal}=10.60g/mL$

The density of the metal remains the same.

Now, calculating the volume of unknown metal, using equation 1, we get:

Density of unknown metal = 11.45 /mL

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Putting values in above equation, we get:

$10.60g/mL=\frac{86.0g}{\text{Volume of unknown metal}}\\\\\text{Volume of unknown metal}=8.11mL$

Hence, the density of the metal is 10.60 g/mL and the volume occupied by 86.0 grams is 8.11 mL

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4 years ago

What happens when you heat iodine and ammonium chloride?

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3 years ago

Read 2 more answers

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Answer:a

Explanation:

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