Why is ac used instead of dc

Which statement about kinetic energy is true?

Potassium iodide (ki) exhibits predominantly ionic bonding. the k and i ions have electron structures that are identical to which two inert gases?

Atoms of which types of elements tend to gain electrons? Atoms of which types of elements tend to lose electrons?

What is a physical intensive property?

Here is the chemical reaction that represents solid lead chloride dissolving in water: PbCl2 (s) ⇌Pb2 + (aq) + 2Cl - (aq) Ksp = 1.2*10-5 Part A Which of the following actions would shift this reaction toward solid lead chloride? a.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda