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Anna [14]
3 years ago
6

Based upon the valence electrons taken from the periodic table,the formula for rubidium (Rb) chlorine (CL) is:

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
7 0

Answer:

RbCl  

Step-by-step explanation:

Rb is in Group 1. It can <em>lose one electron</em> to get a complete shell.

Cl is in Group 17. It can get a complete shell by <em>gaining one election</em>.

Thus, one Rb atom can react with one Cl atom.

The formula of rubidium chloride is RbCl.

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The North Pole of a magnet will attract to the South Pole of another magnet. True or False
hodyreva [135]

pretty sure its True hope this helped

Explanation:

A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away. ... The magnet is attracted by the earth's magnetic north pole and always points in that direction.

7 0
2 years ago
Which is not a product of the fractional distillation of petroleum?
Natalka [10]
Answer:
            Option-C, <u>STEEL</u> <span>is not a product of the fractional distillation of petroleum.

Explanation:
                   Petroleum is the mixture of Hydrocarbons *carbon and hydrogen containing compounds) present beneath the Earth's surface. Petroleum is formed from the remains of animals and plants beneath earth's surface in an anaerobic conditions.
                   Petroleum contains from small hydrocarbons (gases) to medium (liquids) and long chain hydrocarbons (Solids). These hydrocarbons are separated from each other by Fractional Distillation method (separation due to difference in boiling points)
                   Gasoline is a derivative of one of the fraction of petroleum used in internal combustion engines.
                   Jet Fuel is also derived from Kerosene and Naphtha fractions of petroleum.
                   While, Steel is inorganic Alloy (mixture of metals) composed of mainly Iron, Carbon and other elements.</span>
4 0
3 years ago
Which of these are true for a hypothesis? (You can pick more than one)
Naya [18.7K]

Hypotheisis is just like an initial building block for a building. The true statements about hypothesis among the given are-

  • First guess- hypothesis is a proposed explanation for something which is observed. Thus the explanation is just a guess and not a proved one.
  • An initial idea which is assumed to be true - The whole experiment or research is based on an assumption which is supposed to be true and the scientist works to prove that true.
6 0
2 years ago
If copper carbonate system is heated for too short a time, what will you notice for mass percent of copper be too large or too s
sammy [17]

Answer:

The mass percent of copper as element is the same.

Explanation:

First of all we need the reaction that is presented below:

CuCO_{3 (s)} +Heat → CuO_{(s)} + CO_{2 (g)}

The mass percent of copper (Cu) as element is the same because of during the reaction the element only transform its nature from copper carbonate (CuCO_{3 (s)}) to copper oxide (CuO_{(s)}), the latter is a solid and will remain in the system.

On the other hand, you will note that the global percentage mass will be small because of the reaction produce (CO_{2 (g)}) that is a gas and this one will escape for the system.  

Have a great day!

3 0
3 years ago
Hello..................<br><br>.....​
VashaNatasha [74]

Hello.....

Have a beautiful and joyful day ahead.

3 0
2 years ago
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