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Advocard [28]
3 years ago
13

When coal is burned to produce electricity, the electrical energy produced is less than the

Chemistry
1 answer:
zimovet [89]3 years ago
3 0

Answer: it should be c or b

Explanation:

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Changes in which two characteristics can indicate a physical change?
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A-Shape

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reactivity and flammability are both indicators of chemicals changes

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Acids increase the concentration of __________ in a solution
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Which of the following compound names is obviously INCORRECT?
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How would the calculated concentration of the hci be affected if the sodium hydroxide were poured from ma beaker that contained
Mekhanik [1.2K]

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the beaker that contained some water before NaOH were added means that the resulting solution in that beaker will be more dilute. When this diluted sodium hydroxide solution is added to HCl (not hci), the reaction below occurs

HCl + NaOH ⇒ NaCl + H₂O

The reaction above is a neutralization reaction. <u>The concentration of the acid (HCl) will reduce when a base (sodium hydroxide) is added and will also reduce more because of the presence of more water (in the base) which normally reduces the concentration of ions present in an acid or a base to become more dilute.</u>

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3 years ago
Radiometric dating is used to determine
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used to date rocks and other objects based on the known decay rate of radioactive isotopes.

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Different methods of radiometric dating can be used to estimate the age of a variety of natural and even man-made materials.

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