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AnnyKZ [126]
2 years ago
5

4. Identify the true statement.

Chemistry
1 answer:
iris [78.8K]2 years ago
8 0

Answer:

C.) Molecular compounds are composed of two or more nonmetals.

Explanation:

A.) is incorrect. Ionic compounds are composed of metal(s) and nonmetal(s). The metal forms the cation and the nonmetal forms the anion. When two metals combine, they create a metallic compound and experience metallic bonding.

B.) is incorrect. Organic compounds are always molecular compounds because they only contain covalent bonds.

C.) is correct. Molecular compounds must be made of two nonmetals and experience covalent bonding. Should a nonmetal and metal come together, they would form an ionic compound and experience ionic bonding.

D.) is incorrect. Organic compounds are always made up of carbon atoms covalently bonded to other atoms, usually hydrogen or other carbon atoms. Therefore, organic compounds do not always contain hydrogen or oxygen.

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4 0
3 years ago
A solid substance that has a naturally geometric shape with symmetrically arranged plane faces
Arisa [49]
It is a Crystalline
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Under what circumstances can an atom emit a photon
blagie [28]

Answer:

Here

Explanation:

When the atom absorbs energy, it can move to a higher energy state, or excited state. Under what circumstances can an atom emit a photon? A photon is emitted when an atom moves from an excited state to its ground state or to a lower-energy excited state.

3 0
3 years ago
Given that a mass of a ball is (36.0 g), and the volume is (8.0 mL), what is the ball's density in g/mL?​
max2010maxim [7]

Answer:

4.5g/mL

Explanation:

Given parameters:

Mass of ball  = 36g

Volume of the ball  = 8mL

Unknown:

Density of the ball  = ?

Solution:

Density is the mass per unit volume of a substance.

          Density  = \frac{mass}{volume}  

So;

 Density  = \frac{36}{8}    = 4.5g/mL

5 0
3 years ago
Magnesium is able to ____ copper, and copper is able to ____ magnesium.
sveticcg [70]

Answer:

Explanation:

The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.

In given example,

Magnesium is able to <u>reduced</u> the copper and copper is able to <u>oxidized</u> the magnesium.

Zinc is able to <u>oxidized</u> the magnesium and magnesium is able to <u>reduced</u> the zinc.

Copper is able to <u>oxidized</u> the zinc and zinc is able to <u>reduced</u> the copper.

4 0
3 years ago
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