The rejection of mythical beings.
Answer:
Ionization energy tends to increase across a period because the nuclear pull is increasing while shielding is not changing because electrons are in the same energy level. Not only that as we move across a period elements are closer to a full octet.
Explanation:
Any chemical reaction would always result to a chemical change. If you can see observations of a change in color, bubbling or any liberation of gas, formation of a precipitate, or a change in temperature, then a chemical change has occurred. I can't say which combinations would result to a chemical change because there are no choices. I can only give an example. If HCl reacts with NaOH,
HCl + NaOH → NaCl + H₂O
This is a chemical change because a precipitate in the form of NaCl salt is formed.
Answer:
53.87g
Explanation:
Given parameters:
Percentage by mass of Nitrogen in fertilizer = 19%
Mass of fertilizer = 10.0oz
Unkown:
Mass in grams of Nitrogen in the container = ?
Solution
To solve this problem, we first find the percentage of mass of nitrogen in the fertilizer by a taking a percentage of the given mass of the fertlilizer:
Mass of Nitrogen in ounces of the fertilizer =
x 10 = 1.9oz
Since we are expected to express this in grams:
1oz = 28.35g
1.9oz = 1.9 x 28.35, 53.87g