Answer: An ionic bond is a bond that forms between ions with opposite charges.
Explanation:
A chemical bond formed by the transfer of electrons from one atom to another is called an ionic bond.
For example, sodium has electronic distribution as 2, 8, 1 and chlorine has electronic distribution as 2, 8, 7.
In order to attain stability, sodium needs to lose 1 electron and chlorine needs to gain one electron. Therefore, sodium will transfer its one valence electron (forming ion) to chlorine atom (forming ion) which leads to the formation of NaCl compound.
Thus, we can conclude that an ionic bond is a bond that forms between ions with opposite charges.
Answer:
A) a chain reaction that is caused by nuclear fission
Answer:
1.39 × 10⁴ g
Explanation:
Step 1: Given data
Density of gold (ρ): 19.3 g/cm³
Volume of the gold bar (V): 720 cm³
Step 2: Calculate the mass (m) of the gold bar
The density of a substance is equal to its mass divided by its volume. This is expressed through the following expression.
ρ = m/V
m = ρ × V
m = 19.3 g/cm³ × 720 cm³
m = 1.39 × 10⁴ g
The mass of the gold bar is 1.39 × 10⁴ g.
Answer: The volume of the gas when the temperature of the gas is raised to is 363 ml
Explanation:
To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
where,
are the initial volume and temperature of the gas.
are the final volume and temperature of the gas.
We are given:
Putting values in above equation, we get:
Thus the volume of the gas when the temperature of the gas is raised to if the pressure remains constant is 363 ml