Answer:
1.16 mol
Explanation:
Given data:
Mass in gram Mg(OH)₂ = 68 g
Number of moles of Mg(OH)₂ = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Mg(OH)₂ = 58.32 g/mol
By putting values,
Number of moles = 68 g/ 58.32 g/mol
Number of moles = 1.16 mol
Answer:
A: element B
B: element A
C: element B
D: element A
Explanation:
decrease in size leads increase in electronegativity because the smaller the size, the closer the shell is to the nucleus. Also, atomic radius decreases to the right and up on the periodic table. Atomic radius increases to the left and down a period. I hope this helps!
Kinetic enery is the energy that exists as movement of the particles of a substance. This energy would be greater in faster-moving particles as compared to slower-moving particles. Potential energy, on the other hand, is the energy that can be stored in the position of an object and in the position of the particles that make up a substance. Kinetic energy and potential energy are affected by the mass of an object. It is directly related so that the greater the mass the greater the energy would be present in the object and the smaller the mass, the smaller the amount of the energy present.
Supersaturated is when a solution holds more solute than can normally hold/ normally be dissolved.
False
Enumerate means to mention a number of things or one by one