Q: It was long believed that carbonic acid could not exist as a pure compound. However, in 1991 scientists at NASA's Goddard Space Flight Center (USA) succeeded in making solid HCO samples. They did so by exposing a frozen mixture of water and carbon dioxide to high-energy proton radiation, and then warming to remove the excess water. The carbonic acid that remained was characterized by infrared spectroscopy. The fact that the carbonic acid was prepared by irradiating a solid HO + CO mixture, or even by irradiation of dry ice alone, has given rise to suggestions that HCO might be found in outer space or on Mars, where frozen ices of HO and CO are found, as well as cosmic rays. It was announced in 1993 that solid carbonic acid had been created by a cryogenic reaction of potassium bicarbonate and HCl dissolved in methanol. Later work showed that in fact the methyl ester had been formed, but other methods were successful. Theoretical calculations showed that a single molecule of water can catalyze the decomposition of a gas-phase carbonic acid molecule to carbon dioxide and water. In the absence of water, the dissociation of gaseous carbonic acid has been predicted to be very slow, with a half-life of 180,000 years. This only applies if the molecules are few and far between, because it has also been predicted that gas-phase carbonic acid will catalyze its own decomposition by forming dimers, which then break apart into two molecules each of water and carbon dioxide.
Can we conclude that does carbonic acid decompose into water and carbon dioxide?
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A: yes
Earliest deadline first (EDF) or least time to go is a dynamic scheduling algorithm used in real-time operating systems to place processes in a priority queue. Whenever a scheduling event occurs (task finishes, new task released, etc.) the queue will be searched for the process closest to its deadline. This process is the next to be scheduled for execution.
is edf really a dynamic priority scheduling algorithm?
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Answer: yes
A third series was confirmed to be in production by writer Simon Nye at the BFI and Radio Times Television Festival on 8 April 2017. He described the third series as having ''some exotic new animals'', and that production would begin in three weeks' time, upon Keeley Hawes's arrival in Corfu for filming. It will be set in 1937.

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will there be a new series of the durrells?

A: yes
Problem: Text: ''Oops!... I Did It Again'' is a song by American singer Britney Spears, from her second album of the same name. It was released on March 27, 2000, by Jive Records as the lead single from the album. The song was written and produced by Max Martin and Rami Yacoub. ''Oops!... I Did It Again'' is a song that lyrically speaks of a female who views love as a game, and she decides to use that to her advantage by playing with her lover's emotions. Its bridge features a dialogue which references the blockbuster film Titanic (1997).

Question: is oops i did it again a remake?

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A: no
IN: Is it true that is mist twist and sierra mist the same?

Sierra Mist is a lemon-lime flavored soft drink line. Originally introduced by PepsiCo in 1999, it was eventually made available in all United States markets by 2003. The drink was rebranded as Mist Twst in 2016, although it was observed to be reverting back to Sierra Mist in 2018. The brand is aimed at competing with The Coca-Cola Company's Sprite brand and Dr Pepper Snapple Group's 7 Up.

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OUT: yes
Q: Crater Lake (Klamath: giiwas) is a caldera lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fills a nearly 2,148-foot (655 m)-deep caldera that was formed around 7,700 ( 150) years ago by the collapse of the volcano Mount Mazama. There are no rivers flowing into or out of the lake; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 250 years. With a depth of 1,949 feet (594 m), the lake is the deepest in the United States. In the world, it ranks ninth for maximum depth, and third for mean (average) depth.
Can we conclude that is crater lake the deepest lake in the us?
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A:
yes