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Mazyrski [523]
3 years ago
9

Find square root of 423.74 on two place of decimal ​

Chemistry
1 answer:
vekshin13 years ago
7 0
20.58 by using a calculator you can determine this, then round
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Which chemical equation is unbalanced? c o2 right arrow. co2 sr o2 right arrow. 2sro 6h2 3o2 right arrow. 6h2o h2 h2 o2 right ar
netineya [11]

The unbalanced equation is one in which the moles of atoms are not equal on both sides of the reaction.

<h3>What is a balanced chemical equation?</h3>

A balanced chemical equation is one in wgich the moles of atoms in the reactants side is equal to the moles of atoms on the product side.

The given equations of reaction is not clearly stated.

Therefore, the unbalanced equation is one in which the moles of atoms are not equal on both sides of the reaction.

Learn more about balanced equations at: brainly.com/question/11904811

#SPJ4

6 0
2 years ago
Number of grams in 4 mols of cu(no2)2
Drupady [299]
151.55 x 4 you have to add the molar masses for each element together.
6 0
3 years ago
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Please help me with this honestly I'm clueless It's 7th science work......please help
olganol [36]
Hiii
3. describe the physical characters that can be observed: phenotype

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6 0
3 years ago
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Wood, Iron, Glass, Paper, Nickel Which substances show magnetic property?
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4 0
3 years ago
Which of the following is true of the energy levels of electrons in shells?
anyanavicka [17]

Answer:

Option C is the correct. Valence electrons have a higher energy level than those in other filled shells

Explanation:

Electrons must lose energy to move from the first to the second shell. FALSE

The electrons always win energy to move from the first to the second shell.

All the electrons in an atom have similar energy levels FALSE.

They are not neccesary similar. In hydrogen these are the level energy -13.6 eV , -3.4 eV , -1.51 eV , -85 eV  and -54 eV

Electrons do not have potential energy, just kinetic energy. FALSE

They have both.

Valencia electrons are the last electrons in the last layer. They have as much energy as possible and are responsible for forming bonds with other elements.

8 0
3 years ago
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