Q: ''Copper carbonate'' was the first compound to be broken down into several compounds: in 1794 by the French chemist Joseph Louis Proust (1754--1826) thermally decomposed it to CO and CuO, cupric oxide, a black solid.
Can we conclude that copper carbonate on heating gives a black residue of copper oxide?
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A: yes
The Way is a 2010 Spanish drama film directed, produced and written by Emilio Estevez, starring his father Martin Sheen, Deborah Kara Unger, James Nesbitt, Yorick van Wageningen, and Renee Estevez.
is the film the way a true story?
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Answer: no
The guinea pig or domestic guinea pig (Cavia porcellus), also known as cavy or domestic cavy, is a species of rodent belonging to the family Caviidae and the genus Cavia. Despite their common name, these animals are not in the pig family Suidae, nor do they come from Guinea in Africa; they originated in the Andes of South America and studies based on biochemistry and hybridization suggest they are domestic, not wild, descendants of a closely related species of cavy such as C. tschudii.

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do guinea pigs come from papua new guinea?

A: no
Problem: Text: According to the theory of relativity, no information can travel faster than the speed of light in vacuum, but this does not mean that the refractive index cannot be lower than 1. The refractive index measures the phase velocity of light, which does not carry information. The phase velocity is the speed at which the crests of the wave move and can be faster than the speed of light in vacuum, and thereby give a refractive index below 1. This can occur close to resonance frequencies, for absorbing media, in plasmas, and for X-rays. In the X-ray regime the refractive indices are lower than but very close to 1 (exceptions close to some resonance frequencies). As an example, water has a refractive index of 6999999999740000000♠️0.99999974 = 1 6993260000000000000♠️2.610 for X-ray radiation at a photon energy of 6985480652946099999♠️30 keV (0.04 nm wavelength).

Question: can a refractive index be less than 1?

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A: yes
IN: Is it true that can a roman catholic take communion in an anglican church?

The Orthodox Presbyterian Church, the Reformed Presbyterian Church, the American Presbyterian Church the Reformed Seventh-day Adventist Church, Exclusive Brethren, the Apostolic Christian Church, the Church of the Brethren, Mennonites, Amish, some Anglicans, the Church of God in Christ, the Church of God of Prophecy, and some other churches in the Reformed tradition such as Calvinists also practice closed communion. Jehovah's Witnesses hold that only the 144,000 should receive communion. Other nontrinitarian Christians that practice closed communion include the Church of God (Seventh Day), Christadelphians, and Oneness Pentecostals such as the True Jesus Church.

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OUT: no
What's the best answer to this question: does a carbureted engine have a fuel pump?

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Answer:
yes