Tritium is an isotope of hydrogen...
For Isotopes number of neutrons are different but electrons and protons are same
Answer:
Its either B or D. I personally would go with B
Explanation:
Answer:
I think it may be a but im not sure
Explanation:
It is not a complex compound so i dont think B and C make sense but im not sure, you should double check
Answer:
λ = 2.9 × 10⁻⁵ m
General Formulas and Concepts:
c = λν
- C = Speed of Light (3 × 10⁸ m/s)
- ν = frequency (Hz or 1/s⁻¹)
Explanation:
<u>Step 1: Define</u>
ν = 10.4 × 10¹² Hz
<u>Step 2: Solve for λ</u>
- Substitute: 3.0 × 10⁸ = λ(10.4 × 10¹² Hz)
- Divide both sides by ν: 0.000029 = λ
- Rewrite: λ = 2.9 × 10⁻⁵ m
<u>Step 3: Check</u>
<em>We are given 3 sig figs.</em>
Wavelength has only 2 sig figs.
Answer:
mass of the gram after 28 days = 1.29 grams
Explanation:
From the diagram attached below; we would see the plot of the mass vs the time (days).
However ; to predict what would be the mass of the crystal after 28 days if the growth is linear; we have the following analysis;
Let the mass be Y ( since it falls on the y-axis) and the time (days) be X (since it falls on the x-axis)
So; we can have a table as shown below:
X Y XY XX
0 0.500 0 0
7 0.648 4.536 49
14 0.899 12.586 196
21 1.081 22.701 441
Total :42 3.128 39.823 686
If the growth is linear ; the linear regression equation can be represented as :
y = a+ bx
where ;
and
n = samples given = 4
x = number of days = 28
so;
from the table ; replacing the corresponding values; we have:
a = 0.4829
b = 0.0289
Recall:
y = a+ bx
y = 0.4829 + 0.0289 (28)
y = 0.4829 + 0.8092
y = 1.2921 grams
y ≅ 1.29 grams
mass of the gram after 28 days = 1.29 grams