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polet [3.4K]
3 years ago
5

3 A partial desert food web is shown.

Chemistry
1 answer:
Fofino [41]3 years ago
8 0
Decomposeza is correct
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Is it possible for a diprotic acid to have Ka1?
Masja [62]

Answer:

Yes, it is possible.

Explanation:

A diprotic acid is an acid that can release two protons. That's why it is called diprotic.

Monoprotic → Release one proton, for example Formic acid HCOOH

Triprotic → Releases three protons, for example H₃PO₄

Polyprotic → Release many protons, for example EDTA

it is a weak acid.

In the first equilibrum, it release proton, and the second is released in the second equilibrium. So the first equilibrium will have a Ka1

H₂A  +  H₂O  ⇄  H₃O⁺  +  HA⁻                Ka₁

HA⁻  +  H₂O  ⇄  H₃O⁺  +  A⁻²               Ka₂

The HA⁻ will work as an amphoterous because, it can be a base or an acid, according to this:

HA⁻   +  H₂O  ⇄  H₃O⁺   + A⁻²      Ka₂

HA⁻   +  H₂O  ⇄  OH⁻   + H₂A       Kb₂

4 0
2 years ago
How many atoms does one formula unit of Sb4(SiO4)3 have
kotegsom [21]

Answer:

There are 19 atom sin total in antimony silicate, Sb_4(SiO_4)_3.

Explanation:

Number of antimony atoms = 4 × 1 = 4

Number of silicon atoms = 3 × 1 = 3

Number of oxygen atoms = 3 × 4 = 12

Number of atoms in antimony silicate:

= 4 + 3 + 12 = 19

There are 19 atom sin total in antimony silicate, Sb_4(SiO_4)_3.

6 0
2 years ago
When 0.25 moles of NH3 are produced according to the reaction below, how many moles of H2 must have reacted?
marissa [1.9K]

Answer:

Explanation:

by stoichiometry

nNH3/2=nH2/3

0.25/2=nH2/3

nH2=0.25×3/2

nH2=0.375 mol

so its 0.38 mol

6 0
3 years ago
Read 2 more answers
Need help on dis plz that would be big help
Vaselesa [24]

Answer:

Mg(OH)2

Explanation:

Magnesium hydroxide is the base since it has hydroxyl ions.

4 0
2 years ago
Read 2 more answers
A chemistry student’s height is measured at 68.5 inches. How tall is the student in cm?
pantera1 [17]
173.99cm multiply 68.5 x 2.54 always use that number when converting inches to cm
4 0
3 years ago
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