unuafeisrael unuafeisrael

01-03-2022
Chemistry

contestada

What ion causes hardness of water?

Respuesta :

nedleelormestoire nedleelormestoire

01-03-2022

Answer:

calcium ions

Explanation:

Water hardness is due to the presence of calcium ions, and to a lesser extent, magnesium, iron, and manganese.

Answer Link

Otras preguntas

The ability to move a joint through a full range of motion is called: a. agility. b. coordination. c. flexibility. d. power.

50% of all the cakes Lucy bakes that week were party cakes: one fifth were fruit cakes and the remainder were sponge cakes. What percentage of cakes were sponge

If you wanted to borrow money to purchase a home, you would go to a. a mortgage broker. b. an escrow agent. c. a title company. d. a realtor.

What two things must you have in order to use FTP? A. E-mail client and FTP client B. E-mail client and server C. Files and server D. FTP client and server

The ability to form rich and varied mental images or concepts of people, places, things, and situations is the definition of: A. pretending. B. fantasy. C. i

What does it mean to get a 150% salary raise? Explain in words and then give an example showing a calculation.

When an inflated balloon is exposed to cold air, a. the temperature inside the balloon rises. b. the pressure inside the balloon rises. c. the volume of the bal

Which of the following is the most common symptom of hypertension? a. shortness of breath b. tightness in the chest c. headaches d. none of the above

MATCHING PLZ HELP 1. An intense fear of gaining weight, often do not eat enough food, or eat almost nothing. 2. Involves the person binging, or consuming lots

m+-2/3=-1/3 what is m?