Answer:
19 because it gained 3 electron so 12-3=9 beryllium
2
3 is 46-2=44
4 is 2
5 is 5
6 84 polonium
7
8 oxygen
Explanation:
plz let me know if they are right or wrong:)
Answer:
Δp = 3.31 × 10⁻²⁴ kg.m/s
Explanation:
Given:
Electron is confined to a space of, Δx = 10⁻¹⁰ m
According to the Heisenberg uncertainty principle, we have
![\Delta p=\frac{h}{2\Delta x}](https://tex.z-dn.net/?f=%5CDelta%20p%3D%5Cfrac%7Bh%7D%7B2%5CDelta%20x%7D)
where, h is the plank's constant = 6.626 × 10⁻³⁴ J.s
Δp is the uncertainty in the momentum
on substituting the respective values, we get
![\Delta p=\frac{6.626\times10^{-34}}{2\times10^{-10}}](https://tex.z-dn.net/?f=%5CDelta%20p%3D%5Cfrac%7B6.626%5Ctimes10%5E%7B-34%7D%7D%7B2%5Ctimes10%5E%7B-10%7D%7D)
or
Δp = 3.31 × 10⁻²⁴ kg.m/s
A redox reaction occurs
<h3>Further explanation</h3>
Given
Reaction
Ca(ClO3)2 → CaCl2 + 3O2
Required
Type of reaction
Solution
The reaction equation is said to be a redox reaction if there is an oxidation reaction (increase in oxidation number) and a reduction reaction (decrease in oxidation number)
Oxidation number of Cl in Ca(ClO3)2 :+5
Oxidation number of Cl in CaCl2 = -1
Reduction : +5 to -1
O in Ca(ClO3)2 : -2
O in O2 : 0
Oxidation : -2 to 0
So there is a reduction and oxidation reaction
To explore the use of punnett square to predict genotype and phenotypes of offsprings an investigation must be conducted
Answer:
the students are pushing with equal force
Explanation: