Why are lanthanides and actinides separated?

Why are lanthanides and actinides separated? The reason why Lanthanides and Actinides are located at the bottom of the periodical table is because of their properties and in the block in which electrons fill up. The reason why inner-transition metals are located at the bottom of the periodic table, separated from the rest is because […]

What part of the US is most affected by acid rain?

What part of the US is most affected by acid rain? Some acid rain occurs naturally, but sulfur dioxide and nitrogen oxide emissions from smokestacks combine with rain to make sulfuric and nitric acid in amounts that harm the environment. The region of the United States most harmed by acid rain is the East Coast, […]

Why do I hear a radio in my head?

Why do I hear a radio in my head? Musical hallucinations usually occur in older people. Several conditions are possible causes or predisposing factors, including hearing impairment, brain damage, epilepsy, intoxications and psychiatric disorders such as depression, schizophrenia and obsessive-compulsive disorder. Are earworms a sign of mental illness? Stuck songs or earworms are very common, […]

What are the use of neutralization in our daily life?

What are the use of neutralization in our daily life? During indigestion, too much of acid is produced inside the stomach resulting in stomach disorder or acidity. In order to retrieve the pain we take bases such as milk of magnesia which contains magnesium hydroxide. Taking a base neutralizes the effect of excess acid. How […]

What object has a mass of 2.5 kg?

What object has a mass of 2.5 kg? A bag of potatoes has a mass of 2.5 kg. What is the momentum of a 0.2 kg steel ball that is rolling at a velocity of 3.0 m sec? EXAMPLES Example 1: What is the momentum of a 0.2-kilogram steel ball that is rolling at a […]

What are the two natural sources of heat?

What are the two natural sources of heat? Solid fuel, such as coal, and gaseous fuel, such as petroleum, are natural sources of heat energy. These fuels are created over millions of years from the remains of plants and animals. We find them in deposits beneath the surface of the earth. When humans ignite fossil […]

What is a 0.5 M solution?

What is a 0.5 M solution? The usual situation is that you’re following a recipe that specifies, for example, a 0.5 molar solution of NaOH. You know that “0.5 M” literally means 0.5 moles per liter. You know that to do this, you will weigh out so many grams of NaOH and add water to […]

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