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Juli2301 [7.4K]
3 years ago
6

Does a periodic table indicate the occurrence of elements​

Chemistry
1 answer:
guajiro [1.7K]3 years ago
5 0

Answer:

no

Explanation:

it only shows the atomic number and basically the chemical behavior of the element

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What kind of sport do you have interest the most and explain why? <br>​
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Answer

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Explanation:

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NaOH  + H2SO4 =
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Balance the following equation and find molar ratios from the equation,
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7 0
3 years ago
4 b + 3 o2 → 2 b2o3 if 8 moles of b and 4 moles of o2 are allowed to react, how many moles of b2o3 can be formed?
raketka [301]

The number of moles of  b2o3 that will be formed is determined as 4 moles.

<h3>Limiting reagent</h3>

The limiting reagent is the reactant that will be completely used up.

4 b + 3O₂ → 2b₂O₃

from the equation above;

4 b ------------> 2 b₂O₃

2b ------------> b₂O₃

2 : 1

3O₂  -------------> 2b₂O₃

3  :  2

b is the limiting reagent, thus, the amount of b2o3 to be formed is calculated as;

4 b ------------> 2 moles of  b2o3

8 moles -------> ?

= (8 x 2)/4

= 4 moles

Thus, the number of moles of  b2o3 that will be formed is determined as 4 moles.

Learn more about limiting reactants here: brainly.com/question/14222359

#SPJ1      

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2 years ago
explain why ventilation is very important if there is a risk of exposure to radon gas in your home or school
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Radon is a colorless, odorless, radioactive gas. It is also a leading cause of lung cancer. Ventilation is essential.
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3 years ago
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