Answer:
The farther it is the weaker the forces gets.
Explanation:
Take a magnet as a example, if it's close it will attract, but if it's far away then it cannot attract.
Answer:
The answer to your question is b. Mg is being oxidized and c. Mg is the
reducing agent.
Explanation:
Reduction is the gain of electrons
Oxidation is the loss of electrons
Reducing agent is the element that oxidizes itself and reduces another element.
Oxidizing agent is the element the reduces itself and oxidizes another element.
In this reaction:
Magnesium loses electrons so it is being oxidized and it is the reducing agent.
A is incorrect because Mg has a 2+ charge, while SO4 has a 2- charge, if there is 2 Mg and 3 SO4 then the formula will not add to 0 meaning neutral
Explanation:
the law that the properties of the elements are periodic functions of their atomic numbers. Also called Mendeleev's law. (originally) the statement that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
Answer:
For more substance the solid state is more dense than the liquid state.
Explanation:
Option B is true.
The substance in solid state are more dense than in liquid state because particles are tightly packed together.
while the case is different in water because ice is less dance than liquid water.
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
D=m/v
D= density
m=mass
V=volume
Symbol:
The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.
Other options are incorrect:
Unsaturated solutions will not dissolve more solute.
Unsaturated solution can dissolve more solute until it reach to the saturated solution.
Density is not temperature dependent.
it is temperature dependent.
A nonpolar solute will dissolve in a polar solvent such as water.
Dissolution always follow like dissolve like. A non polar solute will dissolve in non polar solvent.