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3 years ago

HELP PLEASE!! ILL GIVE 20 POINTS :)))

1 answer:

6 0

1)The compound CO2 is an example of a(n) covalent compound

CO2 or carbon dioxide is made of carbon and oxygen molecules. It is a compound because it composed of two kinds or more element. Both carbon and oxygen is a gas, so the compound will form a covalent bond. The bond is not easily broken like ionic one.

2) What is another name for a compound known as a salt? Ionic compound

Salt that you mostly found in cooking is sodium chloride or NaCl. It is a compound because it composed of two kinds or more element. Natrium/sodium is metal while chlorine is gas. These compound will form ions(Na+ and Cl-) when dissolved into solution.

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The element is abundant in earths crust and combines with oxygen to form rocks and minerals. what element is it?

romanna [79]

The element is silicon (Si). It forms minerals like quartz and rocks such as granite.

5 0

4 years ago

An alloy of bronze is manufactured by melting 51.2 g of copper with 6.84 g of tin. What is the percent copper in the bronze?

Harlamova29_29 [7]

Answer:

Percentage of copper = 88%

Explanation:

Given data:

Mass of copper = 51.2 g

Mass of tin = 6.84 g

Percentage of copper = ?

Solution:

Formula:

Percentage of copper = mass of copper / total mass × 100

Now we will determine the total mass:

Total mass = mass of copper + mass of tin

Total mass = 51.2 g + 6.84 g

Total mass = 58.04 g

Now we will calculate the percentage of copper.

Percentage of copper = 51.2 g / 58.04 g × 100

Percentage of copper = 0.88 × 100

Percentage of copper = 88%

5 0

3 years ago

Use the information to answer the following question.

jolli1 [7]

I think the answer is c

4 0

3 years ago

Read 2 more answers

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angle

scZoUnD [109]

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees. The type of crystal this is is triclinic.
Triclinic crystal system is one of the seven crystal systems, with three basis vectors.

5 0

3 years ago

What are the oxidation numbers of K, Cl, and O in KClO,?

Tatiana [17]

Answer: Oxidation number of chlorine in potassium chlorate...

so, oxidation state of chlorine in potassium chlorate is +1. and yea!!

Explanation: hope this help

4 0

3 years ago