3 years ago

If an element has more than one ionic charge, how is that piece of information represented in a chemical name?

1 answer:

4 0

Usually with roman numerals, like iron (II) chromate
iron has a charge of 2
or manganese (IV) oxide, manganese has a charge of 4
(these are ionic compounds just to let you know)

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saul85 [17]

Answer:its y

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2 years ago

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The name given to the substance formed when a liquid is miscible in another liquid.

m_a_m_a [10]

Answer:

Solute

Explanation:

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3 years ago

it takes 513 kj to remove a mole of electrons from the atoms at the surface of a piece of metal. how much energy does it take to

schepotkina [342]

Answer:

The right solution is " $8.5\times 10^{-19} \ joule$ ".

Explanation:

As we know,

1 mole electron = $6.023\times 10^{23} \ no. \ of \ electrons$

Total energy = $513 \ KJ$

= $513\times 1000 \ joule$

For single electron,

The amount of energy will be:

= $\frac{513\times 1000}{(6.023\times 10^{23})}$

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2 years ago

Based on the greenhouse effect, if the amount of carbon dioxide in the air decreased, what would happen?

choli [55]

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3 years ago

The forensic technician at a crime scene has just prepared a luminol stock solution by adding 13.0 g of luminol into a total vol

Andrews [41]

Answer:

0.978 M

Explanation:

Given data

Mass of luminol (solute): 13.0 g

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M = mass of solute / molar mass of solute × liters of solution

M = 13.0 g / 177.16 g/mol × 0.0750 L

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2 years ago