03-10-2019
Chemistry

contestada

What is the standard deviation of soft water

Respuesta :

Wolfangel25x Wolfangel25x

03-10-2019

Answer: According to the USGS, the hardness of water is determined based on the concentration of dissolved multivalent cations: soft water - 0 to 60 mg/L (milligrams per liter) as calcium carbonate. moderately hard water - 61 to 120 mg/L. hard water - 121 to 180 mg/L

Explanation:

Answer Link

Otras preguntas

9. A human can be considered an ecosystem. True False

Simplify. [26 - (12 + 4) /2] - [45/(14-5)]

Which city is located on the Arno River and had major industries of clothing and banking? It was the home of the wealthy Medici family.

What was the first self-government of the new world? Magna Carta O Mayflower Compact O Articles of Confederation Declaration of Independence

Based on what you've learned about the first step in finding the central idea, what is the subject of this poem? O keeping secrets different kinds of people kno

(b) Fatima starts a phone call at 18:32 The phone call finishes at 19:16 Work out the length of the phone call.

Amanda receives money from her relatives every year on her birthday. Last year, she received a total of $68. This year, she received a total of $85. What is the

please help me with number 5

in which ways has the transition from forging to farming been detrimental for humanity

Researchers tracked 2668 people from early childhood through adulthood and found that 13-year-olds who are frequent targets of bullies were three times more lik