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8_murik_8 [283]
3 years ago
9

What percent of total energy consumption in the u.s in 2010 came from hydroelectric power? select the closest answer

Chemistry
1 answer:
n200080 [17]3 years ago
5 0

Answer:

12% but u can put 8%

Explanation:

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When hcl(aq) and naoh(aq) are mixed in a beaker, the beaker feels warm to the touch. what is known about the enthalpy of this re
Nady [450]

The balanced chemical equation representing the neutralization reaction of hydrochloric acid (HCl) and sodium hydroxide (NaOH),

HCl (aq) + NaOH(aq) ---> NaCl(aq) + H_{2}O(l) + Heat

This reaction is exothermic that is it proceeds by the release of heat energy. This heat energy is lost to the surroundings. This is the reason for the warming up of the beaker where the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) takes place. The enthalpy of such reaction will be negative as the reaction is exothermic.

5 0
3 years ago
Q pasa si añades acido clorhídrico con tizas (cal y mármol) ????
wariber [46]

Answer:

Cuando se agrega ácido clorhídrico diluido a piezas de mármol que son carbonato de calcio, se forma cloruro de calcio, agua y gas de dióxido de carbono. ... Nota - Todos los ácidos minerales descomponen el mármol que es carbonato de calcio en sales solubles y gas de dióxido de carbono.

Explanation:

que tengas un buen dia amor <3

6 0
3 years ago
Read 2 more answers
What are thermal plasmas?
guajiro [1.7K]
Answer: B

Explanation:

Thermal plasmas are plasmas that reach a temperature equal to their surroundings.
5 0
3 years ago
The air you breathe is made of 21% oxygen and 78% nitrogen. The oxygen in air is the _____ and the nitrogen is the _____.
jarptica [38.1K]
The answer is solute, solvent 

<span>In a solution, a solute the component which is present in lesser amount while a solvent is present in greater amount.  </span>Since nitrogen is present in a greater amount than oxygen (78% > 21%), then the oxygen must be the solute and the nitrogen must be the solvent in the air.
5 0
3 years ago
Calculate the volume of a sample of iron that has a density of 6.8 g/mL and a mass of 6780 mg.
Veronika [31]

Answer:

m= 6780mg = 6.78g = 6.8g

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V= 1ml

8 0
3 years ago
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