Answer: The balanced equation is
Explanation:
The given reaction equation is as follows.
Here, number of atoms present on reactant side are as follows.
Number of atoms on product side are as follows.
To balance this equation, multiply by 2 and MgO by 3 on reactant side. Also, multiply by 3 on product side. Therefore, the equation can be rewritten as follows.
Hence, number of atoms on reactant side are as follows.
Number of atoms on product side are as follows.
Since, this equation contains same number of atoms on both reactant and product side. Therefore, this equation is now balanced equation.
Thus, we can conclude that the balanced equation is .
Answer:
Nitrogen is an inert gas — meaning it doesn't chemically react with other gases — and it isn't toxic. But breathing pure nitrogen is deadly. That's because the gas displaces oxygen in the lungs. Unconsciousness can occur within one or two breaths, according to the U.S. Chemical Safety and Hazard Investigation Board.
Answer is: <span>solubility of cadmium carbonate is 0,00017 g/L.
</span>Cadmium carbonate in water: CdCO₃ → Cd²⁺ + CO₃²⁻.
[Cd²⁺] = [CO₃²⁻] = x.
Ksp = [Cd²⁺] · [CO₃²⁻].
10⁻¹² = x².
x= √10⁻¹².
x = [Cd²⁺] = [CO₃²⁻] = 10⁻⁶ mol/L.
[CdCO₃] = 10⁻⁶ mol/L.
n(CdCO₃) = 10⁻⁶ mol/L · 1 L = 10⁻⁶ mol.
m(CdCO₃) = n(CdCO₃) · M(CdCO₃).
m(CdCO₃) = 10⁻⁶ mol · 172,41 g/mol.
m(CdCO₃) = 0,00017 g/L.
The type of charge an electron carries is B negative
Answer: When you turn a light on it becomes bright :)
In electrical wiring, a light switch is a switch most commonly used to operate electric lights, permanently connected equipment, or electrical outlets. Portable lamps such as table lamps may have a light switch mounted on the socket, base, or in-line with the cord. Manually operated on/off switches may be substituted by dimmer switches that allow controlling the brightness of lamps as well as turning them on or off, time-controlled switches, occupancy-sensing switches, and remotely controlled switches and dimmers. Light switches are also found in flashlights, vehicles, and other devices.