How many mole of oxygen are present in 3 mole of sodium sulfate, Na2SO4

The energy available to primary consumers in an energy pyramid is 800 kilocalories. Approximately how much energy is used by the primary consumers for their physical functions? A. Less than 720 kilocalories B. 720 kilocalories C. 880 kilocalories D.

Problem: In each of the following situations, what type of filtration device would you use? A. Remove powdered decolorizing charcoal from 20mL of solution? B. Collect crystals obtained from crystallizing a substance from about 1 mL of solution. C.

Explains why metals are able to be pounded, extruded, bent, and shaped without breaking?

How are ionic substances formed?

A concentrated solution in water will always contain a strong or weak electrolyte true or false

3 During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms (1) are lost by the atoms (2) are gained by the atoms (3) return to lower energy states within the atoms

Select the answers below that represent the ionic compounds in this list: na2so4 h2so4 ch3-ch3 n2o4 cacl2 ca3 (po4) 2

Whats the relationship between the temperature and the density of a substance

The ionic naming rules

What is the PH of a solution whose [H+] is 0.0007