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lesya [120]
3 years ago
11

True or False: Acids react with some metals to produce hydrogen gas

Chemistry
1 answer:
Sedaia [141]3 years ago
7 0
Acids react with most metals to form a salt and hydrogen gas. ... For example, zinc metal reacts with hydrochloric acid producing zinc chloride and hydrogen gas. \[\ce{Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)}\] Bases react with certain metals like zinc or aluminum for example to also produce hydrogen gas.
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A student wonders whether a piece of jewelry is made of pure silver. She determines that its mass is 3.25 g. Then she drops it i
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The jewelry is 2896.54_Kg/m^3 less dense than pure silver

Explanation:

Density of jewellery = (mass of jewellery) ÷ (volume of jewellery)

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The density of silver is 10490_Kg/m^3 which is (10490 - 7583.46) 2896.54_Kg/m^3 more dense than the jewellery

The density of Silver [Ag]

The weight of Silver per cubic centimeter is 10.49 grams or the weight of silver per cubic meter is 10490 kilograms, that is the density of silver is 10490 kg/m³; at 20°C (68°F or 293.15K) at a pressure of one atmospheres.

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What is the difinition of the word democracy?​
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Answer:

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