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zepelin [54]
3 years ago
15

4.13 moles of chromium (III) nitride weighs how much?

Chemistry
1 answer:
Leya [2.2K]3 years ago
3 0

Answer: 272.5915639999...

Explanation:

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List the number of atoms for each element in this compound: NH3 Nitrogen: 4, 3, 2 or 1 Hydrogen: 4 3 2, or 1 ??
guapka [62]
<h3>Answer:</h3>

1 Nitrogen atom and 3 Hydrogen atoms

<h3>Explanation:</h3>
  • A molecule is the smallest particle of an element or a compound that has the properties of the element or the compound.
  • Molecules of elements are made up of similar atoms while those of compounds are made up of different atoms from different elements.
  • Compounds are made up of atoms of different elements.
  • For example, NH₃ is made up of one nitrogen atom and three ammonia atoms, water(H₂O) is made up of two hydrogen atoms and one oxygen atom.
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A certain element has 12 neutrons and 12 protons. Assume that this atom has an
KATRIN_1 [288]
The element is magnesium
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3 years ago
How is it possible to change the shape of your molecular models without breaking any of the covalent bonds?
horrorfan [7]

Answer:

A molecule's shape strongly affects its physical properties and the way it interacts with other molecules, and plays an important role in the way that biological molecules (proteins, enzymes, DNA, etc.) interact with each other.

Explanation:

5 0
2 years ago
What do elements in a same group share
Setler79 [48]

Answer:

The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.

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Explanation:

A chemical property is defined as the property that brings changes in chemical composition of a substance.

For example, flammability, combustion, reactivity, electronegativity etc are allchemical properties.

On the other hand, a property that does not bring any change in chemical composition of a substance is known as a physical property.

For example, shape, size, mass, density etc are all physical properties.

Thus, we can conclude that these may all be classified as chemical properties of a substance.

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3 years ago
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