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OverLord2011 [107]
3 years ago
10

Who proposed a heliocentric model of the solar system

Chemistry
2 answers:
Mandarinka [93]3 years ago
7 0
Nicolaus copernicus !
alekssr [168]3 years ago
4 0
<span>This theory was first proposed by Nicolaus Copernicus. hope it helps</span>
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Given the chemical formulas of the following compounds, name each compound and state the rules you used to determine each name.
Svetlanka [38]
When naming an ionic compound, write the name of the cation, which is the metal first. Then, write the name of the anion, which is the nonmetal. However, you remove the last 2-3 letters and replace suffixes. 

1. RbF --> Rubidium Fluoride
Change fluorine to fluoride
2. CuO --> Copper (II) Oxide
Change oxygen to oxide. Oxide has a charge of -2. Since no subscripts are written, it means they have the same opposite charge. So, we use Copper (II).
<span>3. (NH</span>₄<span>)</span>₂<span>C</span>₂<span>O</span>₄  ---> Ammonium Oxalate
NH₄ is ammonia, but we change it to ammonium for polyatomic ions. 
5 0
3 years ago
The diagram below represents a sodium atom bonding to a chlorine atom to form sodium chlorine.
Sergio [31]
Sodium Chloride is a compound.
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3 years ago
A warning label is required to provide set information. The following list contains only some of this required information. What
antoniya [11.8K]
Labels for a hazardous chemical must contain:
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• Product Identifier
• Signal Word
• Hazard Statement(s)
• Precautionary Statement(s)
• Pictogram(s)

So the answer is product identifier. 
4 0
3 years ago
Read 2 more answers
An object has a mass of 5.52 g and a volume of 12 mL. What is the density of the object?
Rudik [331]

Answer:

<h2>Density = 0.46 g/mL</h2>

Explanation:

Density of a substance can be found by using the formula

<h3>Density =  \frac{mass}{volume}</h3>

From the question

mass = 5.52 g

volume = 12 mL

Substitute the values into the above formula and solve for the Density

That's

<h3>Density =  \frac{5.52}{12}</h3>

We have the final answer as

<h3>Density = 0.46 g/mL</h3>

Hope this helps you

4 0
3 years ago
Oil, which is built from the nonmetals hydrogen, carbon, and oxygen:
morpeh [17]
Oil consists of many B. Covalent bonds between the nonmetals of Carbon, hydrogen and oxygen.
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3 years ago
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