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olga55 [171]
2 years ago
8

How does the Big Bang theory explain why there is a lot of hydrogen and helium in the universe?

Chemistry
1 answer:
N76 [4]2 years ago
7 0

Answer:

when the explosion happened the matter fussed into elements as the electrons portions Nd notrons were compresed into the elements beacuase hydrogen has 1 nutron proton and electron surronding its core

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Contrast (Compare) the Sun's gravitational pull on Earth when Earth is
77julia77 [94]

Answer:

gravity equation.

Explanation:

use this gravity equation

F= G(m1*m2/d²)

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3 years ago
In what stage of wastewater treatment are large objects such as rags, sticks and garbage removed from influent?
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Primary treatment !(:


8 0
3 years ago
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Based on location in the periodic table, which element has chemical properties that are most similar to iodine
Ymorist [56]

Based on location in the periodic table, fluorine (F) has chemical properties that are most similar to iodine.

In the periodic table, elements are classified in groups and periods. The elements in the same group are chemically similar and they have the same number of valence electrons. Elements in the same period have the same highest energy level.

Hence, when looking for an element that is most chemically similar to iodine, we have to consider the element that is in the same group with iodine.

Both fluorine are iodine are both in group 17 hence, fluorine is most chemically similar to iodine.

Learn more: brainly.com/question/11155928

3 0
3 years ago
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Witch element has the fewest valence electrons available for bonding
Phoenix [80]
The element that has the fewest valence electrons available for bonding I believe is Hydrogen.
5 0
3 years ago
how many moles of sodium hydroxide (NaOH) are required to completely neutralize 2 mol of nitric acid (HNO3)
Brut [27]

2 moles of sodium hydroxide will be needed.

<h3><u>Explanation</u>:</h3>

Sodium hydroxide is a compound which is a base and nitric acid is the acid. The formula of the nitric acid is HNO3 and that of sodium hydroxide is NaOH.

The reaction between them are

NaOH +HNO3 =NaNO3 +H2O.

So here we can see that 1 mole of sodium hydroxide reacts with 1 mole of nitric acid to produce 1 mole of sodium nitrate and 1 mole of water.

So for 2 moles of nitric acid, 2 moles of sodium hydroxide will be required.

6 0
3 years ago
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