The trend in ionization energy that occurs across a period on periodic table is that
Ionization energy of elements within a period generally increases from left to the right.
<u><em>explanation</em></u>
Ionization energy is energy required to remove an electron from gaseous atom or ion.
The ionization energy increase across the period because, as you move across the period (from the left to the right) the atomic radius decrease.
This make outer electrons to be closer to the nucleus and more attracted to the center.Therefore it is hard to remove electron as you move across the period.
Answer:
n = 1.24 moles
Explanation:
Given that,
Mass = 153 grams
Molar mass of KClO₃ = 122.55 g/mol
We need to find the number of moles.
We know that,
No. of moles = given mass/molar mass
So,
So, there are 1.24 moles in 153 g of KClO₃.
The question is incomplete, here is the complete question:
In the lab, keith has two solutions that contain alcohol and is mixing them with each other. Solution A is 20 % alcohol and Solution B is 6 % alcohol. He uses 400 milliliters of Solution A. How many milliliters of Solution B does he use, if the resulting mixture is a 12% alcohol solution?
<u>Answer:</u> The volume of solution B used is 533.3 mL
<u>Explanation:</u>
We are given:
Volume percent of alcohol in solution A = 20 %
Volume percent of alcohol in solution B = 6 %
Let the volume of solution B used be 'x' mL
Volume of solution A used in the mixture = 400 mL
Total volume of the mixture = (400 + x) mL
Calculating the volume of solution B used:
Hence, the volume of solution B used is 533.3 mL
Answer:
the limiting reagent is butane
Explanation:
5C₄H₁₀ + 25O₂ → 20CO₂ + 5H₂0
yes because the
0。5 that's left may stop the batter from over flowing