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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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Answer:

Explanation:

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2.The chemical formula of ammonia is NH3, and its molar mass is 17.03 g/mol. The ammonia molecule has a trigonal pyramidal shape, with nitrogen connected to the three hydrogen atoms. The nitrogen atom has a lone electron pair, which makes ammonia a base.

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4 0
3 years ago
Write the balanced half-equation describing the oxidation of mercury to hgo in a basic aqueous solution. Please include the stat
Cloud [144]

Answer:

Hg^0+2OH^-\rightarrow Hg^{2+}O+H_2O+2e^-

Explanation:

Hello,

In this case, mercury (II) oxide (HgO) is obtained via the reaction:

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Nonetheless, since it is a reaction carried out in basic solution, mercury's half-reaction only, must be:

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Best regards.

8 0
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Explanation:

Given data:

Formula weight of H₂O = ?

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Formula weight of H₂O = 2×1.008 amu + 1×16.00 amu

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