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TEA [102]
3 years ago
10

Are phosphorous and oxygen covalently or ionically bonded?

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
8 0

Answer:

covalently

Explanation:

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Give an example of a rule of the natural world that a scientist can assume is always true.
vaieri [72.5K]

Answer:

Laws of Nature are to be distinguished both from Scientific Laws and from Natural Laws. On the other account, the Necessitarian Theory, Laws of Nature are the principles which govern the natural phenomena of the world. That is, the natural world “obeys” the Laws of Nature.

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3 years ago
Enter a chemical equation for NaOH(aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that
yuradex [85]

Answer:

NaOH(aq) is a Base.

Explanation:

Those substances which give or release OH^{-} ions in aqueous solution are called as the Arrhenius Bases.

In the aqueous solution, NaOH dissociates as follows -

NaOH^{} ↔ Na^{+}  + OH^{-}

If it reacts with a strong acid HCl, the chemical equation for this reaction will be as follows -

HCl + NaOH = NaCl + H_{2} O

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Using the Law of Conservation of Matter, determine the number of grams of iron sulfide (FeS) that will be produced in this react
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3 years ago
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HELP!! b. At the equivalence point, all of the acid has been neutralized by the base. Why does the pH change so
CaHeK987 [17]

At equivalence there is no more HA and no more NaOH, for this particular reaction. So that means we have a beaker of NaA and H2O. The H2O contributes 1 x 10-7 M hydrogen ion and hydroxide ion. But NaA is completely soluble because group 1 ion compounds are always soluble. So NaA breaks apart in water and it just so happens to be in water. So now NaA is broken up. The Na+ doesn't change the pH but the A- does change the pH. Remember that the A anion is from a weak acid. That means it will easily attract a hydrogen ion if one is available. What do you know? The A anion is in a beaker of H+ ions! So the A- will attract H+ and become HA. When this happens, it leaves OH-, creating a basic solution, as shown below.

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3 years ago
Of the following metals, which is the LEAST reactive? <br> A. K<br> B. Ca<br> C. Na<br> D. Mg
emmainna [20.7K]
The Answer Should Be D.Mg
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3 years ago
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