Answer:
A voltaic cell
Explanation:
A voltaic cell is a device which converts chemical energy to electrical energy. The chemical reactions that take place inside the cell causes electrons to flow from anode to cathode hence, electricity is produced. A simple voltaic cell is made by placing two different metals in contact with an electrolyte separated by a salt bridge. The cathode is the negative electrode while the anode is the positive electrode. It is also called a galvanic cell.
In a voltaic cell having a copper/copper solution half cell, reduction occurs at the cathode. Hence, at the cathode copper II ions accept two electrons and become reduced to ordinary metallic copper. This causes the blue colour of the solution to become discharged (fade) as the cell continues to function.
Answer:
B
Explanation:
Iron becomes liquid when we heat it to a temperature of 1535° C this is it's melting point. If we further heat the liquid to 3,000° C it boils; iron is a gas above this temperature.
Answer:
n = 2 moles (1 sig-fig)
Explanation:
Using the Ideal Gas Law equation (PV = nRT), solve for n (= moles) and substitute data for ...
pressure = P(atm) = 100atm
volume =V(liters) = 50L
gas constant = R = 0.08206L·atm/mol·K
temperature = T(Kelvin) = °C + 273 = (35 + 273)K = 308K
PV = nRT => n = PV/RT = (100atm)(50L)/(0.08206L·atm/mol·K)(308K)
∴ n(moles) = 1.978moles ≅ 2 moles gas (1 sig-fig) per volume data (= 50L) that has only 1 sig-fig. (Rule => for multiplication & division computations round final answer to the measured data having the least number of sig-figs).
They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.
<h3>What is the name of T-shaped molecular geometry?</h3>
- They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.
- At a 90° angle from the equatorial orbitals, two orbitals are placed along the vertical axis. The orbitals are trigonal bipyramidal in form. Lone pairs of electrons are present in two of the equatorial orbitals. The three atoms are positioned around the core atom to create a T-shaped molecule.
- T-shaped skills are a particular set of attributes that add value to an employee. A person with a T-shape has outstanding knowledge and skills in a certain field, and they excel at collaborating with others.
To learn more about T-shaped refer to:
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