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Alja [10]
3 years ago
12

The atomic number of an element indicates the number of?

Chemistry
1 answer:
marshall27 [118]3 years ago
6 0

Answer:

The number is mostly related to the mass or the weight of the element.

Explanation:

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El arroz produce electricidad
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El arroz si produce electricidad:)

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A solution has a [OH-] of 1 × 10-9. What is the pOH of this solution?
zhannawk [14.2K]
POH = - log [ OH⁻ ]

pOH = - log [ 1 x 10⁻⁹ ] 

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Answer C

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3 years ago
How many neutrons are in Lithium ​
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Answer:

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Explanation:

8 0
3 years ago
Write the balanced chemical equation between H2SO4H2SO4 and KOHKOH in aqueous solution. This is called a neutralization reaction
const2013 [10]

Answer:

0.185M sulfuric acid

Explanation:

Based on the reaction:

H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

<em>1 mole of sulfuric acid reacts with 2 moles of KOH</em>

Initial moles of H₂SO₄ and KOH are:

H₂SO₄: 0.750L ₓ (0.470mol / L) = <em>0.3525 moles of H₂SO₄</em>

KOH: 0.700L ₓ (0.240mol / L) = <em>0.168 moles of KOH</em>

The moles of sulfuric acis that react with KOH are:

0.168mol KOH ₓ (1 mole H₂SO₄ / 2 moles KOH) = 0.0840 moles of sulfuric acid.

Thus, moles that remain are:

0.3525moles - 0.0840 moles = <em>0.2685 moles of sulfuric acid remains</em>

As total volume is 0.700L + 0.750L = 1.450L, concentration is:

0.2685mol / 1.450L = <em>0.185M sulfuric acid</em>

8 0
3 years ago
Which of the following metals may tarnish to a greenish-blue color called verdigris
hoa [83]
Copper. thats the way copper oxidized. like the statue of liberty 
3 0
3 years ago
Read 2 more answers
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