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Butoxors [25]
2 years ago
7

What elements are in H2F5BLi and how many atoms are in each element​.

Chemistry
2 answers:
Brut [27]2 years ago
5 0

Answer: phosporous and sulfur

Explanation:

smart

Maurinko [17]2 years ago
3 0

Answer:

2 hydrogen

5 fluorine

1 boron

1 lithium

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Which of the following groups have seven valence electrons and are very reactive?
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Answer:

Column 17 halogens

Explanation:

To answer the question we need to know the following;

What are valence electrons?

  • Valence electrons are outermost electrons in the outermost energy level of an atom of any element.

What are halogens?

  • Halogens are group 7 elements that have seven valence electrons. They include, chlorine, fluorine, iodine, etc

What is the reactivity of halogens?

  • Halogens are the most reactive non-metals in the periodic table. They react by gaining one electron to attain a stable configuration.
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A solution is prepared by dissolving 0.23 mol of lactic acid and 0.27 mol of sodium lactate in water sufficient to yield 1.00 L
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Buffer solutions are generally known to resist change in pH values.

When a strong base (in this case, NaOH) is added to the buffer, the lactic acid will give up its H+ in order to transform the base (OH-) into water (H2O) and the conjugate base, so we have:

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Since the added OH- is consumed by this reaction, the pH will change only slightly.

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How many moles are in 20 grams of Ca (Calcium)? *
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