Choose the correct equation to represent the following statement (unbalanced chemical equation):Aluminum reacts with hydrochloric acid to yield aluminum chloride and hydrogen.
A. AlCl3 + H2 Al + HCl
B. Al + HCl AlCl3 + H2
C. Al HCl + AlCl3 + H2
D. Al + HCl AlCl3 + H2O
Answers
B. Al +HCI AICI3 +H2. I hope this helps
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The unit of measure "mL" describes what property of a substance
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Final answer:
The solvent in lemonade is water.
Explanation:
The solvent in lemonade is water. Lemonade is made by dissolving lemon juice and sugar in water. Water is the substance in which the other components, such as lemon juice and sugar, are dissolved.
Learn more about solvent in lemonade here:
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Answer:
In polar coordinates, the origin is called the pole.
Explanation:
The position of a point in a polar coordinate system is defined by using the distance from a fixed point and an angle made with a fixed ray from that point. It is a two-dimensional coordinate system.
The polar coordinates is defined as
Where, r is radius and θ is the angle with the polar axis, i.e. positive axis.
In a coordinate system (0,0) is called origin.
In polar coordinate system (0,0) is called pole.
Therefore, in polar coordinates, the origin is called the pole.
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Researchers at Virginia Tech decided to try using biochar to help reforest the post-mining site soil. They got permission to apply a layer of biochar to a post-mining site before it was reseeded and replanted.
High stability over long time and source need not be replaced
High penetration and high ionization
A good source of beta radiation and has a half-life of 432 years
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Ionization smoke detectors use americium as a source of alpha particles. Alpha particles from the americium source ionize air molecules. This makes some particles positively charged and some negatively charged. ... Because of this shielding, the smoke detector poses no radiation health risk when they are properly handled.
Explanation:
Hope this helped! :D
B. Photovoltaic
C. Hydrophobic
D. Hydroelectric
Answers
Answer: Option (D) is the correct answer.
Explanation:
When kinetic energy of falling water is converted to electricity then the generated power is called hydroelectric power.
In a hydroelectric plant, a reservoir is used to store water in a dam. This dam is located on a river. When water is released from this reservoir then it flows through the turbine. As a result, this turbine spins and activates a generator which produces electricity.
Thus, we can conclude that hydroelectric power is generated by converting the kinetic energy of falling water to electricity.