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Basile [38]
3 years ago
7

List at least two chemical reactions that resulted in a white precipitate. For these reactions list the possible chemical name o

f the precipitate. What do these reactions (and the others with white precipitates) have in common?
Chemistry
1 answer:
Alina [70]3 years ago
8 0
Barium chloride + sodium sulphate --> barium sulphate + sodium chloride
BaCl2 + Na2SO4 ---> BaSO4 + 2 NaCl
The barium sulphate appears as a white precipitate

Silver nitrate +  Sodium chloride ---> Silver Chloride + sodium nitrate
AgNO3 + NaCl ----> AgCl + NaNO3
The silver chloride appears as a white precipitate.

These  are sometimes called double decomposition reactions.
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2 years ago
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Dima020 [189]

Answer:

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Explanation:

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3 0
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If the mass of a cube with a length of 9.0 cm3 is 12.2 g what is its density
Anvisha [2.4K]

Answer:

The density is 1,35 g/cm3

Explanation:

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7 0
3 years ago
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Select the conjugate acid-base pair(s). a) HI, I b) HCHO2, SO4^2- c) CO3^2-, HCI d) PO4^3-, HPO4^2-
Semenov [28]

Answer:

d) PO4^3-, HPO4^2-

Explanation:

Basically, an acid and a base which differs only by the presence or absence of  proton (hydrogen ion) are called a conjugate acid-base pair.

a) HI, I

This is incorrect. For the acid, HI the conjugate base is I⁻ ion.

b) HCHO2, SO4^2-

This is incorrect, there's no relationship between both entities.

c) CO3^2-, HCI

This is incorrect, there's no relationship between both entities.

d) PO4^3-, HPO4^2-

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6 0
3 years ago
How do atoms and molecules of elements and compounds combine in chemical reactions?
solong [7]

Answer:

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8 0
2 years ago
Read 2 more answers
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