Answer:
Gravity
Explanation:
i dont rlly know where it comes from...
Answer:
1. The correct option is;
c. maintains charge balance in the cell
2. The correct option is;
c. +3.272 V
Explanation:
The aqueous solution in a galvanic cell is the electrolyte which is a ionic solution containing that permits the transfer of ions between the separated compartment of the galvanic cell such that the overall system is electrically neutral
Therefore, the aqueous solution maintains the charge balance in the cell
2. Here we have;
B₂ + 2e⁻ → 2B⁻ Ecell = 0.662 V
A⁺ + 1e⁻ → A Ecell = -1.305 V
Hence for the overall reaction, we have;
2A + B₂ → 2AB gives;
(0.662) - 2×(-1.305) = +3.272 V.
Answer:
The false statement is: 3. Because liquid water and liquid carbon tetrachloride do not mix, neither do their vapors
Explanation:
Gas is a state of matter, that has <u>less density than liquids and solids</u>. The gaseous particles have low intermolecular forces and thus they can move freely.
It is a very <u>compressible fluid</u> that has no fixed shape. Gas occupies the whole container in which it is stored, thus taking the shape of the container. Therefore, <u>the volume of the gas is equal to the volume of the container.</u>
<u>Polar liquid like water (H₂O) and nonpolar liquid like carbon tetrachloride, are immiscible. However, in the gaseous state, their vapors form a homogeneous mixture.</u>
Answer:
Bohr diagram shows electrons orbiting the nucleus. Nitrogen has 7 electrons orbiting the nucleus
Lewis structure is the simplified Bohr diagram. It only shows the electrons in the outer shell. For Nitrogen, 2 electrons are in the first shell. The remaining 5 electrons are in the outer shell.
Explanation:
Bohr diagram shows electrons orbiting the nucleus. Nitrogen has 7 electrons orbiting the nucleus
Lewis structure is the simplified Bohr diagram. It only shows the electrons in the outer shell. For Nitrogen, 2 electrons are in the first shell. The remaining 5 electrons are in the outer shell.
<h3>Answer;</h3>
Substance i > Substance ii > Substance iii
<h3>Explanation:</h3><h3><em><u>Substance i</u></em><em> :</em></h3>
Data Given;
Density = ?
Mass = 12 g
Volume = 10 mL
Formula Used;
Density = Mass ÷ Volume
Putting Values,
Density = 12 g ÷ 10 mL
Density = 1.2 g.mL⁻¹
<h3><em><u>Substance ii</u></em><em> :</em></h3>
Data Given;
Density = ?
Mass = 10 Kg = 10000 g
Volume = 10 L = 10000 mL
Formula Used;
Density = Mass ÷ Volume
Putting Values,
Density = 10000 g ÷ 10000 mL
Density = 1 g.mL⁻¹
<h3><em><u>Substance iii</u></em><em> :</em></h3>
Data Given;
Density = ?
Mass = 10 mg = 0.01 g
Volume = 12.0 μl = 0.012 mL
Formula Used;
Density = Mass ÷ Volume
Putting Values,
Density = 0.01 g ÷ 0.012 mL
Density = 0.833 g.mL⁻¹