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Stolb23 [73]
3 years ago
12

Why does silver gate tarnish on exposed to air

Chemistry
2 answers:
Lelu [443]3 years ago
7 0

Answer:

when silver articles exposed to air silver racts with Sulphur present in the atmosphere and form a black layer of silver sulphide on the surface. copper articles get tarnished by reacting with air and water. due to this, a layer is formed over copper vessels.

stich3 [128]3 years ago
6 0

Explanation: When silver is exposed to sulfur-containing gases in the air, it discolours and then darkens as it reacts with the gas to form a surface layer of tarnish If a silver object is to be kept from tarnishing, it must be protected from sulfur-containing gases.

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Is it likely that an atom of Te would substitute for an atom of O in a solid compound? yes no indeterminate
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Answer:

The correct answer is no.

Explanation:

Tellurium is a chemical element denoted by Te and having atomic number 52. It is mildly toxic, brittle, silver-white, and rare metalloid. The element is chemically related to sulfur and selenium, all three of which are chalcogens.  

Oxygen is a chemical element, that is, a substance, which comprises only one kind of atom. Its official chemical symbol is O and exhibits an atomic number 8, this signifies that an atom of oxygen possesses eight protons in its nucleus. In the given question, it is not likely that tellurium would replace for oxygen, as the two elements are highly unlike.  

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3 years ago
Four acids are analyzed and their Ka values are determined. Which of the following values represents the strongest acid?
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Hi, thank you for posting your question here at Brainly. 

The acid dissociation constant, Ka, is an equilibrium constant that measure the strength of an acid. It is a ratio of the concentration of the products (salt and water) and the reactants (acid). The higher the Ka, the more tendency it is to favor the product side, which means more tendency to donate H+ ions. This is exactly the definition of a strong acid (high H+ ionized).

Thus, the answer is letter D.
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4 years ago
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3 years ago
How many liters are in a 0.115 M solution containing 1.55 moles of dissolved KBr?
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13.48 is your answer.

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