Answer:
Explanation:
To calculate the heat of reaction we need to determine:
- The heat produced
- The moles of Zn that reacted
<u>Moles of zinc (Zn)</u>
It says that the 0.103 g reacted completely, knowing that the Zn molecular weight is 65.4 g/mol:
<u>Heat released by the reaction</u>
The solution goes from 22.5 °C to 23.7°C:
<u>Heat of reaction</u>
Answer: as the number of predators increases, more prey are captured. as a result the prey population starts to decrease.
and 
are polyatomic anions composed of two or more atoms.
<h3>What is a polyatomic anion?</h3>
A polyatomic ion is an ion composed of two or more atoms. Examples: The hydroxide cation (
) and the phosphate cation (
) are both polyatomic ions.
and are the polyatomic anions because both contain more than 1 atom.
Hence,
and are polyatomic anions composed of two or more atoms.
Learn more about the polyatomic anion here:
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Electromagnetic Radiation. Do you listen to the radio, watch TV, or use a microwave oven? All these devices make use of electromagnetic waves. Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength.
Using off road vehicles does help contribute to the process of erosion.
