Answer:
2Ga2O3 +3MgF2->2GaF3 + 3Mg0
i think
Explanation:
They’re equally as hot at 50˚C each. However the one with the larger water mass has the most heat energy, as every gram of water at the same temperature contains the same amount of heat energy.
To have zero heat energy a substance has to be at absolute zero. This is 0˚K which equals -273˚C. So there’s already a lot of heat energy in a substance at 0˚C. The amount of heat energy per degree per gram varies depending on the temperature, but in rough terms a gram of ice contains 2.11 Joules for every ˚C above -273˚C. So a gram of ice at 0˚C contains roughly 273*2.11 = 576 Joules of heat energy.
It then takes an additional 334 Joules to melt a gram of 0˚C ice into a gram of 0˚C water. After this a gram of water requires 4.19 Joules for every ˚C above 0˚C, and so heating this water up to 100˚C then requires 100\times 4.19=419 Joules per gram. So the total heat energy in a gram of 100˚C water is 576+334+419=1329 Joules.
Putting this together means that a gram of boiling water contains 1329/576 = 2.3 times as much heat energy as a gram of 0˚C ice, or put another way, 2.3 grams of ice contains the same heat energy as 1 gram of boiling water.
So in answer to the question if you freeze 2.3 cups of water to just 0˚C, the resulting ice will contain roughly the same heat energy as 1 cup of water at 100˚C. Ice out at sea may of course be a few degrees cooler and so you’d need a little more, but you certainly don’t need anything like an iceberg!
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Related Questions (More Answers Below)
Answer:
Arsenic, As, has atomic number 33, which is the number of protons in the nuclei of its atoms. A neutral As atom would also have 33 electrons. The electron configuration of a neutral arsenic atom is [Ar]3d104s24p3
Explanation:
In an ionic compound the atoms are linked via ionic bonds. These are formed by the transfer of electrons from one atom to the other. The atom that loses electrons gains a positive charge whereas the atom that accepts electrons gains a negative. This happens in accordance with the octet rule wherein each atom is surrounded by 8 electrons
In the given example:
The valence electron configuration of Iodine (I) = 5s²5p⁵
It needs only one electron to complete its octet.
In the given options:
K = 4s¹
C = 2s²2p²
Cl = 3s²3p⁵
P = 3s²3p³
Thus K can donate its valence electron to Iodine. As a result K, will gain a stable noble gas configuration of argon while iodine would gain an octet. This would also balance the charges as K⁺I⁻ creating a neutral molecule.
Ans: Potassium (K)
