It's replacement reaction. Hope it helped
→ ![2CrCl_3 + 3Co](https://tex.z-dn.net/?f=2CrCl_3%20%2B%203Co)
Explanation:
- The products formed are chromic chloride and cobalt.
Chromium + Cobaltous Chloride = Chromic Chloride + Cobalt
- Type of reaction is Single Displacement (Substitution) which is there is a displacement of one atom.
Reactants used in the reaction are -
- Chromium
![(Cr)](https://tex.z-dn.net/?f=%28Cr%29)
- Cobaltous Chloride
![(CoCl_2)](https://tex.z-dn.net/?f=%28CoCl_2%29)
Products formed in the reaction are -
- Chromic Chloride
![(CrCl_3)](https://tex.z-dn.net/?f=%28CrCl_3%29)
- Cobalt
![(Co)](https://tex.z-dn.net/?f=%28Co%29)
Hence, the chemical reaction is as follows -
→![CrCl_3 + Co](https://tex.z-dn.net/?f=CrCl_3%20%2B%20Co)
For balancing the above chemical equation we need to add a coefficient of 2 in front of chromium and of 3 in front of cobalt(II)chloride on right-hand-side while of 2 in front of chromium chloride and of 3 in front of carbon monoxide on left-hand-side of the equation.
Hence, the balanced equation is -
→ ![2CrCl_3 + 3Co](https://tex.z-dn.net/?f=2CrCl_3%20%2B%203Co)
Answer: b} The exact time when an individual atom will decay can be accurately predicted.
c} After each half-life, the amount of radioactive material is reduced by half.
Explanation:
All radioactive decay follows first order kinetics.
Rate law expression for first order kinetics is given by:
where,
k = rate constant
t = time taken for decay process
a = initial amount of the reactant
a - x = amount left after decay process
Expression for calculating half life, which is the time taken by the half of the reactants to decompose is:
![t_{1/2}=\frac{0.693}{k}](https://tex.z-dn.net/?f=t_%7B1%2F2%7D%3D%5Cfrac%7B0.693%7D%7Bk%7D)
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Explanation:
A Bronsted-Lowry base is a substance that accepts a proton in the form of a hydrogen (H) atom.
On the other hand;
Bronsted-Lowry acid is the substance that donates the proton.
HF (aq) + SO32- ⇌ F- + HSO3-
In the forward reaction;
Bronsted-Lowry acid : HF
Bronsted-Lowry base: SO32-
In the backward reaction;
Bronsted-Lowry acid : HSO3-
Bronsted-Lowry base: F-
The conjugate base of HF is F-
The conjugate acid of SO32- is HSO3-