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iren [92.7K]
3 years ago
8

For what type(s) of compound do we use Greek, numerical prefixes in the name?

Chemistry
1 answer:
irina1246 [14]3 years ago
4 0

Explanation:

A molecular compound is defined as the compound in which atoms come closer to each other through sharing of electrons and results in the formation of covalent bond.

These compounds usually contain two or more number of non-metals.

Greek prefixes like mono, di, tri, tetra etc are used while naming molecular compounds as these prefixes indicate the number of atoms of each element present.

For example, Cl_{2}O_{7} is a molecular compound and its name is dichlorine heptoxide.

As di means 2, and hepta means 7.

Thus, we can conclude that for molecular compounds we use Greek, numerical prefixes in the name.

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What is an energy conserved system ?
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Explanation:

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3 years ago
What is the product if an atom of Po-209<br> undergoes alpha decay?
g100num [7]
<h3>Answer:</h3>

Lead-205 (Pb-205)

<h3>Explanation:</h3>

<u>We are given;</u>

  • An atom of Po-209

We are supposed to identify its product after an alpha decay;

  • Polonium-209 has a mass number of 209 and an atomic number of 84.
  • When an element undergoes an alpha decay, the mass number decreases by 4 while the atomic number decreases by 2.
  • Therefore, when Po-209 undergoes alpha decay it results to the formation of a product with a mass number of 205 and atomic number of 82.
  • The product from this decay is Pb-205, because Pb-205 has a mass number of 205 and atomic number 82.
  • The equation for the decay is;

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7 0
3 years ago
How many grams of Carbon are in sample of 400 grams of Co2?​
RoseWind [281]

Answer:

Mass of carbon = 109.1 g

Explanation:

Given data:

Mass of carbondioxide = 400 g

Mass of carbon = ?

Solution:

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Molar mass of CO₂ = 44 g/mol

Mass of carbon in 400g of  CO₂:

Mass of carbon = 12 g/mol/44 g/mol × 400 g

Mass of carbon = 109.1 g

3 0
3 years ago
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