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antiseptic1488 [7]
3 years ago
12

Give the name and formula of the compound formed from each pair of elements: (a) 37q and 35r (b) 8q and 13r (c) 20q and 53r

Chemistry
2 answers:
amm18123 years ago
8 0
(a) 37Q = 37Rb(Rubidium)
     35R = 35Br(Bromine)
Formula of the compound is : RbBr(Rubidium Bromide)

(b) 8Q = 8O(Oxygen)
     13R = 13Al(Aluminum)
Formula of the compound is : Al2O3(Aluminum Oxide)

(c)20Q = 20Ca(Calcium)
    53R = 53I(Iodine)
Formula of the compound is : CaI2(Calcium Iodide)
HACTEHA [7]3 years ago
6 0

Answer:

(a) RbBr - rubidium bromide.

(b) Al_2O_3 - aluminium oxide.

(c) CaI_2 - calcium iodide.

Explanation:

Hello,

(a) In this case, the elements having 37 and 35 as the oxidation states are rubidium and bromine respectively, in such a way the formed compound, due their gatherable oxidation states (+1 and -1 respectively) is the following binary salt:

RbBr - rubidium bromide.

(b) In this case, the elements having 8 and 13 as the oxidation states are aluminium and oxygen respectively, in such a way the formed compound, due their gatherable oxidation states (+3 and -2 respectively) is the following basic oxide:

Al_2O_3 - aluminium oxide.

(c) In this case, the elements having 20 and 53 as the oxidation states are calcium and iodine respectively, in such a way the formed compound, due their gatherable oxidation states (+2 and -1 respectively) is the following binary salt:

CaI_2 - Calcium iodide.

Best regards.

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anyanavicka [17]

Answer:

1. By being cured

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4. i) Wastes from industrial processes

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Explanation:

1. In order to preserve the proteins in the hides of animal skin from putrefaction they are cured with salt to remove by, osmotic pressure difference,  the water content present in the animal hide

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