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3 years ago

What is true of an Arrhenius acid?

Chemistry

1 answer:

expeople1 [14]3 years ago

5 0

<span>B, An Arrhenius acid donates H+ ions.</span>

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_____________________ held that all matter is made up of four “elements”— earth, air, fire, and water.

Novosadov [1.4K]

Answer:

Democritus

Explanation:

He spoke about matter was made of tiny particles which moved in empty space

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3 years ago

How are conclusions and evidence related

serg [7]

You need evidence to support a conclustion

3 0

3 years ago

Read 2 more answers

Does anyone know how to do this? the solubility of barium carbonate, BaCO3, is 0.0100 g/L. Its molar mass is 197.3 g/mol. What i

g100num [7]

It's simple, just follow my steps.

1º - in 1 L we have $0.0100~g$ of $BaCO_3$

2º - let's find the number of moles.

$\eta=\frac{m}{MM}$

$\eta=\frac{0.0100}{197.3}$

$\boxed{\boxed{\eta=5.07\times10^{-5}~mol}}$

3º - The concentration will be

$C=5.07\times10^{-5}~mol/L$

But we have this reaction

$BaCO_3\rightleftharpoons Ba^{2+}+CO_3^{2-}$

This concentration will be the concentration of $Ba^{2+}~~and~~CO_3^{2-}$

$K_{sp}=\frac{[Ba^{2+}][CO_3^{2-}]}{[BaCO_3]}$

considering $[BaCO_3]=1~mol/L$

$K_{sp}=[Ba^{2+}][CO_3^{2-}]$

and

$[Ba^{2+}]=[CO_3^{2-}]=5.07\times10^{-5}~mol/L$

We can replace it

$K_{sp}=(5.07\times10^{-5})*(5.07\times10^{-5})$

$K_{sp}\approx25.70\times10^{-10}$

Therefore the $K_{sp}$ is:

$\boxed{\boxed{\boxed{K_{sp}\approx2.57\times10^{-11}}}}$

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4 years ago

Read 2 more answers

What is a difference between starch and glycogen

IrinaVladis [17]

Starch is present in two forms- Amylose- which is linear chain of glucose and Amylopectin is a branched chain polymer of glucose.glycogen is found in animals and is stored in liver.

8 0

4 years ago

Read 2 more answers

Elements found in the column identified by the arrow would have which of the following general electron configurations?

zepelin [54]

Answer:

d. ns2np3

Explanation:

In the first main group all elements have a singly occupied s orbital.

In the second main group, all elements have a doubly occupied s orbital.

In the third main group or 13th group all elements have a doubly occupied s orbital and a singly occupied p orbital.

In the fourth main group or 14th group all elements have a doubly occupied s orbital and a doubly occupied p orbital.

In the fifth main group or 15th group all elements have a doubly occupied s orbital and a triply occupied p orbital.

And so on.

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3 years ago