I think the answer is mercury
Given question is incomplete. The complete question is as follows.
Balance the following equation:
![H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O](https://tex.z-dn.net/?f=H_3PO_4%20%2B%20Ca%28OH%29_2%20%5Crightarrow%20Ca%28H_2PO_4%29_2%20%2B%20H_2O)
Answer: The balanced chemical equation is as follows.
![2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O](https://tex.z-dn.net/?f=2H_3PO_4%20%2B%20Ca%28OH%29_2%20%5Crightarrow%20Ca%28H_2PO_4%29_2%20%2B%202H_2O)
Explanation:
When a chemical equation contains same number of atoms on both reactant and product side then this equation is known as balanced equation.
For example, ![H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + H_2O](https://tex.z-dn.net/?f=H_3PO_4%20%2B%20Ca%28OH%29_2%20%5Crightarrow%20Ca%28H_2PO_4%29_2%20%2B%20H_2O)
Number of atoms on reactant side:
H = 5
P = 1
O = 6
Ca = 1
Number of atoms on product side:
H = 6
P = 2
O = 9
Ca = 1
In order to balance this equation, we will multiply
by 2 on reactant side and we will multiply
by 2 on product side. Hence, the balanced chemical equation is as follows.
![2H_3PO_4 + Ca(OH)_2 \rightarrow Ca(H_2PO_4)_2 + 2H_2O](https://tex.z-dn.net/?f=2H_3PO_4%20%2B%20Ca%28OH%29_2%20%5Crightarrow%20Ca%28H_2PO_4%29_2%20%2B%202H_2O)
Answer:
M.Mass = 3.66 g/mol
Data Given:
M.Mass = M = ??
Density = d = 0.1633 g/L
Temperature = T = 273.15 K (Standard)
Pressure = P = 1 atm (standard)
Solution:
Let us suppose that the gas is an ideal gas. Therefore, we will apply Ideal Gas equation i.e.
P V = n R T ---- (1)
Also, we know that;
Moles = n = mass / M.Mass
Or, n = m / M
Substituting n in Eq. 1.
P V = m/M R T --- (2)
Rearranging Eq.2 i.e.
P M = m/V R T --- (3)
As,
Mass / Volume = m/V = Density = d
So, Eq. 3 can be written as,
P M = d R T
Solving for M.Mass i.e.
M = d R T / P
Putting values,
M = 0.1633 g/L × 0.08205 L.atm.K⁻¹.mol⁻¹ × 273.15 K / 1 atm
M = 3.66 g/mol
Answer:
propagation of disturbances—that is, deviations from a state of rest or equilibrium—from place to place in a regular and organized way. Most familiar are surface waves on water, but both sound and light travel as wavelike disturbances, and the motion of all subatomic particles exhibits wavelike properties.
Explanation: