Answer:
a,b,c,e
Explanation:
Ionic substances are hydrated and then the ions interact with the dipoles in water. Oxygen has affinity for actions while hydrogen has affinity for anions hence the ionic substance easily dissolves in water
Answer:
When sunlight enters a raindrop in the air, the light splits into a multitude of colors. This light then reflects off the back of the raindrop and re-emerges in the direction in which the light first entered. The light emerging from many raindrops creates a rainbow.
Explanation:
The change in energy level is equivalent to the energy of the released photon. This is related by Planck's equation:
E = hcf
The higher the energy change, the greater the frequency, f, of the photon.
Explanation
To find the mass from the given number of moles of the compound or molecule or atom.Use this formula
mass = moles x MM
where MM is the molar mass of the compound .To find the molar mass of CaCl2, consider the number of atoms of each element in the formula then multiply the number of elements with their atomic masses then finally add all the molecular weight.
CaCl2 has 1 Ca atom , 2 Cl atoms.
Ca = 1 x 40.07 = 40.07
Cl = 2 x 35.45 = 70.9
40.07 + 70.9 = 110.97 g / mol
mass = 0.89 x 110.97 = 98.76 g
Answer
98.76 g
The H+ concentration that would best describe a basic solution would be the one having values less than 10^-7. The pH of a solution is related to H+ concentration by pH = -log[H+]. Therefore, as the concentration of H+ decreases the alkalinity would rise.
