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sdas [7]
3 years ago
15

Please help I will give brainliest.

Chemistry
1 answer:
iris [78.8K]3 years ago
8 0

Answer:

the second one looks like it so I picked the second one

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How many atoms are present in 0.035 moles?
RUDIKE [14]

Answer:

2.11x10^{22}atoms

Explanation:

Hello!

In this case, considering the Avogadro's number, which relates the number of particles and one mole, we can infer that 1 mole of any element contains 6.022x10²³ atoms as shown below:

\frac{6.022x10^{23}atoms}{1mol}

Thus, we compute the number of atoms in 0.035 moles as shown below:

atoms=0.035mol*\frac{6.022x10^{23}atoms}{1mol} \\\\atoms=2.11x10^{22}atoms

Best regards!

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3 years ago
Why do cats purr to get attention
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3 years ago
Which statement about living things and their environment is true?
Alisiya [41]

Answer:

Which statement about living things is true?

All living things are made of cells, use energy, respond to stimuli, grow and reproduce, and maintain homeostasis

Explanation:

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Balance the following redox equation using the oxidation-number-change method. Show your work, describing each step.
nexus9112 [7]

2HNO3+3H2S ——>2S+4H2O+2NO

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4 years ago
In which of the three acid-base concepts can water be a product of an acid-base reaction? In which is it the only product?
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Salt and water is formed as product, when Arrhenius acid and Arrhenius base reacts and the reaction is known as neutralization reaction.

<h3>What is Arrhenius acid-base reaction?</h3>
  • The concept of acid and base based on the theory of ionization which was first proposed in 1884 by Svante Arrhenius
  • According to Arrhenius, on dissociation in water the hydrogen-containing compounds which give H+ ions or protons are the acids and  the hydroxide compounds which give OH− ions on dissociation in water are bases.
  • This theory is applicable only to compounds which are dissolved in aqueous solution.

To learn more about Arrhenius acid-base reaction: brainly.com/question/15196401

#SPJ4                                                                                    

4 0
1 year ago
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