Answer:
The balanced chemical equation :
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Explanation:
When calcium hydroxide reacts with hydrochloric acid it gives calcium chloride and water as a products. The chemical equation is given as:
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According to question, solid calcium hydroxde is added to 38.0 mL of 0.410 M of HCl solution, so the chemical equation can be written as:
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According to stoichiometry, when 1 mole of solid calcium hydroxide reacts with 1 mole of hydrochloric acid to gives 1 mole of aqueous calcium chloride and 1 mole of water.
Answer:
it's the uneven heating of the region's of the troposphere by the sun the sun warms the air at the equator more than the air at the poles. it causes convention currents large scale patterns of winds that move heat and moisture around the globe. as air rises expands and cools water vapor condenses and clouds develop.
Explanation:
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Answer:
a. The reaction associated with DHºf for an ionic compound
Explanation:
An exothermic process is a process that loses heat for the surroundings, so the temperature of the system must decrease, and ΔH must be negative.
DHºf or ΔHºf of an ionic compound is always negative because the final energy is always lower than the initial. It happens because of the stability of the bond, the system wants a lower energy state to be stable.
The ionization of a lithium atom occurs with the gain of energy, which is given to the electron, so it may give off the atom. So it's an endothermic process.
To change the state of a solid to a gas (sublimation), the compound must gain heat, its temperature must increase, so it's always an endothermic process.
To break a covalent bond it's necessary the gain of energy, so it's an endothermic process.
Answer: the number of a chemical element in the periodic system,
Explanation:
The energy released when a chemical compound reacts to produce new compounds is called Bonding Energy.