Apples turn brown when exposed to air because it undergoes aerial oxidation. Due to this, when the inside of the apple is exposed to the air containing oxygen and water, it turns brown. When apple is uncut, skin of the apple protects it from this process.
If the peeled apple in kept in the refrigerator, the oxidation reaction is greatly slowed down. This is because, rate of chemical reaction decreases with temperature. Hence, in refrigerator it would take several days for it to turn brown.
Answer: 0, 32 , 273
Explanation:
The freezing point of water in degree Celsius, Fahrenheit and Kelvin are in the following order; 0 , 32 , 273
Answer:
Explanation:
Hello,
In this case, the chemical reaction is:
Thus, the reacting moles of hydrochloric acid are computed with the volume of the given solution:
Hence, we perform the proportional factors having the 2:1 molar relationship between hydrochloric acid and hydrogen to find the yielded moles of hydrogen:
Finally, by using the ideal gas equation we obtain the volume for the specified conditions as shown below:
Best regards.
Answer:
chlorophyll
Explanation:
the chlorophyll in the leaf absorbs all the colors of the radiation from sun but reflects only green colour. that is why we see green when we look at a leaf on a tree.
