Answer:
Option D (
)
Explanation:
Acids react with metal to form salt and hydrogen gas.
Metals which are more reactive than hydrogen evolve hydrogen gas on reaction with acid.
For example:
Magnesium reacts with hydrogen chloride to form magnesium chloride and hydrogen.
2HCl(aq) + Mg(s) → MgCl2(aq) + H2(g)
Al and Zn are more reactive than hydrogen, therefore, these metals evolve hydrogen gas on reaction with acid.
reacts with HCl to form NaCl and nitric oxide.
reacts with HCl to form potassium chloride, carbon dioxide and water.
As reaction of does not evolve any gas, therefore, the correct option is D.
Answer:A
Explanation: A hydrogen bond is two hydrogen atoms being bonded together
Answer:
d-block
Explanation:
Many scientists describe a "transition metal" as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. In actual practice, the f-block lanthanide and actinide series are also considered transition metals and are called "inner transition metals".
Answer:
Explanation:
cold and hot are temperatures
Charle's law states the relationship between the temperature and the volume of the gas. The final volume occupied at 120 °C is 0.20 L.
<h3>What is Charle's law?</h3>
Charle's law is the ideal gas law that states the relationship between the volume of the gas occupied at a temperature.
Given,
V1 = 0.75 L
T1 = 1443 .15 K
T2 = 393.15 K
The final volume is calculated as:
(V1 × T2) ÷ T1
= 0.75 × 393.15 ÷ 1443.15
= 0.20 L
Therefore, 0.20 L is the final volume.
Learn more about Charle's law here:
brainly.com/question/14517633
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