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rodikova [14]
3 years ago
10

What produces energy in the Sun?

Chemistry
2 answers:
Gwar [14]3 years ago
5 0

It is Nuclear reactions that occur in the innermost layer closet to the core.

jeka57 [31]3 years ago
3 0
Nuclear reactions Alpha reactions
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Select the correct locations on the periodic table.
Alexus [3.1K]

Explanation:

It is known that atoms that have same number of valence electrons will show similar chemical properties.

So, when we move from left to right across a period there occurs increase in number of valence electrons of each element. But when we move down a group then number of valence electrons remain the same.

Hence, elements of same group will show similar chemical properties.

Therefore, we can conclude that elements marked as 2 and 3 will have similar chemical properties.

4 0
2 years ago
Read 2 more answers
How many grams of 02 will be formed from 6.5 moles of KCLO3
Allisa [31]

Answer:

312 g of O₂

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2KClO₃ —> 2KCl + 3O₂

From the balanced equation above,

2 mole of KClO₃ decomposed to 3 moles of O₂.

Next, we shall determine the number of mole of O₂ produced by the reaction of 6.5 moles of KClO₃. This can be obtained as follow:

From the balanced equation above,

2 mole of KClO₃ decomposed to 3 moles of O₂.

Therefore, 6.5 moles of KClO₃ will decompose to produce = (6.5 × 3)/2 = 9.75 moles of O₂.

Finally, we shall determine the mass of 9.75 moles of O₂. This can be obtained as follow:

Mole of O₂ = 9.75 moles

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ =?

Mole = mass / Molar mass

9.75 = Mass of O₂ / 32

Cross multiply

Mass of O₂ = 9.75 × 32

Mass of O₂ = 312 g

Thus, 312 g of O₂ were obtained from the reaction.

4 0
2 years ago
Read 2 more answers
The compound consists of 40% carbon and 6.71% hydrogen. Its mass of 1 liter of steam is 2.4 g. What is the formula of the compou
AveGali [126]

I think it is CH2O.

If i'm wrong srry

7 0
3 years ago
Sodium metal reacts with chlorine gas in a combination reaction. Write a balanced equation to describe this reaction. Click in t
umka2103 [35]

Answer:

Na + Cl ⇒ NaCl

Explanation:

Skeleton equation: Na + Cl ⇒ NaCl

This is already balanced so that is the answer.

6 0
2 years ago
Iron plus lead (||)sulfate react forming iron (||) sulfate plus lead
miss Akunina [59]
Fe + PbSO4 -> FeSO4 + Pb
8 0
3 years ago
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