The metal properties that make up electrical wires are conductivity and ductility. Conductivity is important for free electrons to flow, hence electricity. Ductility is as well integral for strips to be formed, but with ample strength that does not break the material.
The reaction that exemplifies a double replacement reaction is as follows: K2S + CoCI2 -> 2KCI + CoS, which is option 1.
<h3>What is a double replacement reaction?</h3>
A double replacement reaction is a type of reaction in which two elements are substituted in the reacting compounds.
In the reaction given as follows:
K2S + CoCI2 -> 2KCI + CoS
- Pottasium replaces cobalt in Cobalt chloride
- Sulfur replaces chlorine in Cobalt chloride
Therefore, the reaction is a type of double replacement reaction.
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it is also the same for as when we breath
Explanation:
In all nuclei above atomic number 83, the strong nuclear force is not strong enough to balance the electrostatic repulsion between protons.
Nuclei like deuterium, carbon-13, and neon-21 are all stable.
But elements like uranium-238 are radioactive. U-238 (Z = 92) has a half-life of about 4.5 billion years.
Answer:
The volume of the container would be 1507 L
Explanation:
These question can be solved in two different ways:
Let's do the short road.
We know that 1 mol of anything at STP conditions occupies 22.4 L
By a rule of three:
1 mol contains 22.4L at STP
Then, 67.3 mol of gas would be contained in (67.3 . 22.4) /1 = 1507.5 L
We assume CO₂ as an Ideal Gas, so we can apply P . V = n . R . T
At STP, T is 273.15K and P = 1 atm. We replace:
1 atm . V = 67.3 mol . 0.082 . 273.15K
V = (67.3 mol . 0.082 . 273.15K) / 1 atm → 1507 L