12.app. edmentum. com Course Activity: Identifying a Substance by Its Properties
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Part C
Now gather all of your pennies dated after 1982. Complete the table for the post-1982 pennies using the same
steps from part B.
В І у 1
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A- A - EEE Z3
number of pennies
combined mass of the pennies (8)
average mass of a penny (8)
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Part

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

idk what is it? is this a question that you know the answer or u dont