Why do foods and fuels have chemical potential energy?
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Please help!! I’ll mark u brainly What type of reaction occurs during photosynthesis?OA. Oxidation-reductionOB. DecompositionOC. CombustionOD. Double-displacement
Have people considered that aliens could possibly live without oxygen and water and we are looking in the wrong direction for a new life form?This is astronomy, not chemistry. Sorry, they do not have the option of astronomy.
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Answer:
2522g
Explanation:
8Fe + S8 —> 8FeS
From the question,
8moles of Fe required 1mole of S8.
Therefore, Xmol of Fe will require 5.65mol of S8 i.e
Xmol of Fe = 8 x 5.65 = 45.2moles
Now we need to covert 45.2moles to gram. This is illustrated below below:
Molar Mass of Fe = 55.8g/mol
Number of mole of Fe = 45.2moles
Mass of Fe =?
Mass = number of mole x molar Mass
Mass of Fe = 45.2 x 55.8
Mass of Fe = 2522g
Therefore, 2522g of Fe is needed for the reaction.
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Answer: Hope this helps :)
Explanation:
The kinetic molecular theory can be used to explain each of the experimentally determined gas laws. The pressure of a gas results from collisions between the gas particles and the walls of the container. Each time a gas particle hits the wall, it exerts a force on the wall. In the kinetic theory of gases, gas molecules move around in the most random way colliding and bumping into each other and then bouncing off in the opposite direction.
The molecules exert no intermolecular forces on each other and they have no potential energy associated with them in their motion.
Thus the energy is wholly kinetic.
The concept of pressure is explained in kinetic theory as a consequence of kinetic energy of gases. Let me explain it.
Consider an ideal gas (the ones with which kinetic theory is concerned) in a closed container.
Due to the troublesome motion of the gas molecules, they will collide with each other, some of them shall collide with the container walls and then bounce back and this process continues.
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Answer: Option (D) is the correct answer.
Explanation:
General formula of an alkyne is .
Suffix "yne" in the name of a compound represents that there is a triple bond present in the compound.
So, a molecule of propyne will have three carbon atoms, four hydrogen atoms and a triple bond. Therefore, there wll be 6 sigma bonds and 2 pi bonds in a propyne molecule.
The last photo because its molecular formula is C3H4.
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What were the names of the minerals and types of rocks?
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There are over 200 names of minerals, I'm not sure what you want for that
The groundhogs are hibernating.
The groundhogs migrated.
The groundhogs have died out.
The groundhogs are gathering food.
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Answer:
The groundhogs are hibernating.
Explanation:
Groundhogs hibernate during the winter months and don't come out of their burrows.