Phosphorus is:

1 found free in the atmosphere

2 returned to the soil by rhizobium

3 added to the soil through weathering

4 usually very abundant in an ecosystem

Describe how to prepare the solution using a 250.0 mL volumetric flask by placing the steps in the correct order. Not all of the steps will be used. a. Transfer the measured amount of NaCl to the volumetric flask. b.

Social class is defined as a group of people with similar levels of wealth, power, and prestige. a group of people of the same sex, race, and ethnicity. a group of people with nothing in common. a group of people of the same age.

Name a complex salt used in silver-playing.

Determine the number of seconds there are in 30 hours

A block of metal has a volume of 14.0in3 and weighs 5.26lb. What is its density in grams per cubic centimeter?,

Explain the difference between the literal, supernatural, and psychological levels in a story

List the four (4) ways you can tell that a chemical reaction has occurred.

The Ka of a monoprotic weak acid is 6.07 * 10-3. What is the percent ionization of a 0.179 M solution of this acid?

What does LeChatelier's principal mean

How many milliliters of a 0.7% stock solution are required to make 2 l of 0.2% solution? how many ml of solvent will be required to carry out the dilution?